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Waltham Commercial HVAC Contractors

Browse these commercial HVAC contractors with great ratings from Thumbtack customers in Waltham.

Top Pro
Fix Air
4.8
from 230 reviews
  • 14 years in business
  • 315 hires on Thumbtack
  • Top Pro on Thumbtack
Noel H.
Verified review

Mr Sosa submitted a quote after I had rang and submitted many enquiries to many contractors for work attaching new ducting to old ducting. I choose Mr Sosa because he said he would do the work today. Other contractors made undertakings later and I needed this work done to allow other works to proceed. During the day Mr Sosa made undertakings both by phone and the message system on this website he would do the work today. I waited until 10pm for him to arrive but he never did the work. From my experience I find the undertakings of doing timely results not being met. From my experience I would advise extreme caution when dealing with Mr Sosa.

  • 10 years in business
  • 127 hires on Thumbtack
Steve D.
Verified review

Was very professional and presented himself well. I had other HVAC companies out and did not take time to give the right options like Dan did. I am now waiting to meet again with Dan and confirm contract

Top Pro
  • 28 years in business
  • 70 hires on Thumbtack
  • Top Pro on Thumbtack
Phil F.
Verified review

I had Mark work on both of my homes. His work was very professional. A friend of mine (a general contractor), and several other people asked me who I had install my outdoor shower on my Cape home, as they thought it "looked great". His prices are very fair and I would highly recommend him.

Top Pro
Moldguys Restoration LLC
4.8
from 62 reviews
  • 6 years in business
  • 102 hires on Thumbtack
  • Top Pro on Thumbtack
Roni S.
Verified review

Moldguys is an *awesome* small family company and I couldn't recommend them more wholeheartedly - I wish they worked in general home stuff and not just mold remediation so I could hire them for all work at my home and not deal with any other repair companies. They did a big job in my basement and cleared out a ton of heavy stuff before even being able to deal with the mold issue and their price was really fantastic, certainly the best I came across. Their hard work and great price is in addition to their really kind way with customers - I work off-shifts and they made sure not to bother me during my daytime sleep hours and were so gracious when I had to ask them for help with things and to move their truck for other contractors. They even helped the other contractors with moving some heavy stuff because I wasn't able to. This brings me to my next point - I have been working with many different contractors lately on various concurrent projects and can confidently say Moldguys were the easiest and loveliest to work with as well as the most professional - they have typed up work orders with a clear breakdown of the work and costs along with when payments were expected..just really appreciated everything about the way they do business. They worked at my home for nearly a week and endured very hot as well as cold rainy weather and just did great work. Lastly, they saved me a lot of money when they pointed out reasons I didn't need to hire a company for additional work on something.. Great people, great company, awesome customer skills, just genuinely wonderful people doing hard work and doing it WELL. Hire them if you want uour job done right by really nice people.

Top Pro
Remedy cooling and heating
4.9
from 54 reviews
  • 4 years in business
  • 70 hires on Thumbtack
  • Top Pro on Thumbtack
Mark W.
Verified review

Our heat pump broke down so we called a company out to take a look then they told me they can fix but the cost would be so high that they recommend that I should consider a new heat pump so I told them I will think about it . So I went on Thumbtack for a second opinion I got in contact with Remedy Cooling and Heating Remy came take a look at my heat pump run some diognostic told me that the heat pump need freion and one welding he told me what it would cost, how long the work would take , very upfront and honest very hard to find in these days . Remy did not charge me to come out and check on my heat pump and run diognostic on the unit very honest. All I can say from now and for the foreseeable future he is my go to HVAC contractor . Mark W

Atmosphere HVAC
4.7
from 55 reviews
  • 13 years in business
  • 64 hires on Thumbtack
Steven P.
Verified review

Jose is the best sub-contractor that I've ever hired. Not only is he timely and professional, his work is amazing. Gets it right the first time and with the most cost effective method. Additionally, he a great guy who genuinely cares for his work and customers. I highly recommend him for any hvac or small plumbing job.

  • 20 years in business
  • 77 hires on Thumbtack
Thumbtack Customer
Verified review

Henry responded within minutes after I posted my request for help with our radiator leak. He was at our house in less than an hour and he fixed every radiator in our house. I can't say enough about how much we appreciated his help. We have asked Rite Temp Heating Company to do some more plumbing work for us.

Currier North
4.7
from 51 reviews
  • 30 years in business
  • 57 hires on Thumbtack
Rebecca Y.
Verified review

Because I grew up in a stuffy house without cooling, I was always miserable in the summers. It was my childhood dream to own a house with central cooling. In 2017, we bought a house without cooling, but Currier was able to remedy that. We hired Currier to install cooling in our entire home. They also installed heating in the finished part of our basement. Starting the process, I got quotes from three contractors. Currier stood out from the other contractors for the following reasons: 1. Proposed the best solution for the house and not whatever was easiest to install 2. Clearly explained the solution. One contractor said he would put a ductless unit in a certain spot because it fit but did not consider the room layout. 3. Well priced. They weren’t the cheapest solution, but also not the most expensive. Currier was able to start the work right away. They were accommodating with our schedules. At the beginning of each week, we would tell Mark which days and partial days we could be available and Mark made the arrangements. Mark was very responsive with e-mail. The overall process took longer than expected due to unforeseen situations. There was a lot of concrete between the floors, the ceiling had tight clearances, the thermostats needed rewiring, etc. But the crew worked through the challenges. The crew was courteous and polite, and cleaned up every day before leaving. We now have cooling in what feels like one of the more humid summers in recent history. We are thankful for the Currier team for making it possible.

Top Pro
A&M Services, HVAC
4.9
from 46 reviews
  • 13 years in business
  • 69 hires on Thumbtack
  • Top Pro on Thumbtack
Wassaf F.
Verified review

Needed some help for some general HVAC maintenence and redoing where the air filter for my blower goes. Very professional, came on time. Gave me very honest advice and did the job very clean.

Top Pro
3 Brothers Mechanical
4.7
from 43 reviews
  • 17 years in business
  • 68 hires on Thumbtack
  • Top Pro on Thumbtack
Ron B.
Verified review

Great Contractor . They replaced a old gas furnace with a new 98% efficient furnace. I compared them with another company that had been doing my service for 16 years. Eric & his brother did the job and they were the most detailed and competitive. They earned the business with their communication and detail of my options. They did a great Job .! I made the right decision. A 5 Star ++++ company.

Soumadel HVAC llc
5.0
from 40 reviews
  • 11 years in business
  • 44 hires on Thumbtack
Marco M.
Verified review

Very positive experience with new A/C installation in our 120 yrs old house. - kind, respectful and crew is the same. - knowledgeable about systems and helped us choose what would make more sense in our house. -completed the work in less time than anticipated. - minimal disruption to the house other than the expected dust. There are negligible cosmetic repair to do, and no wires on the outside of the house. Did not expect it and am thrilled about it. - did not promise what he could not deliver. Obviously takes pride in a job well done. Stands by his work and tried to solve issues when they come up. - Outstanding with following up. I had some hesitance at the beginning when he was late for an appointment for an estimate. I am very glad I went past that because he was early for everything else and turned out to be in the top two professional contractors I have ever worked with. I recommend without hesitation.

  • 21 years in business
  • 29 hires on Thumbtack
Brian D.
Verified review

Few times in my life I write about a company. This crew came to my home last night after suffering 2 other plumbing contractors whom I told what unit I have, swore they were well versed, couldn't restore my heating system. now its 1:45 am my home now 48 degrees and fearful of a total freeze-up. Called a friend who I remembered boasting about the plumber who came over a few weeks ago to get his personal cell number. He responded in 40 minutes and worked until my high efficiency unit was fired up again. He had a computer gadget hooked up to it that the other 2 monkeys didn't have and saw the problem, corrected it and we are the better for it. Sir, a true gentleman, and a special thanks dealing with my wife and crying kids. Hire this firm if you have serious issues and send the monkeys to the zoo. Thank you Vincent, get some sleep.

Modern Air HVAC
4.8
from 32 reviews
  • 11 years in business
  • 37 hires on Thumbtack
Eric S.
Verified review

I had a newer AC unit stop working on me right when it was outside its warranty. The contractor who installed it was absolute trash with whom I had a litany of problems so I tried Modern Air HVAC. I really wish I would have had these guys from the start to do the initial work. Jeremy/Modern Air came out within 48 hours of my Thumbtack request. Despite attempts to repair the unit he stopped at parts that needed to be special ordered and told me flat out that the unit that was initially installed was some off-brand POS that is essentially built to fail. He was willing to order parts for me to fix it but in the end he told me I'd be saving myself a lot of money and issues down the road to just replace the condenser with something more reliable. I did some research on my own and basically found this all to be true and the price Jeremy/Modern Air quoted me for a new unit was more than reasonable. Within a week I had a brand new condenser unit, 5 year warranty on everything, and an HVAC guy that not only knew his stuff but was trustworthy, reliable, and did the little things like reply to texts and phone calls and let you know if he was going to be running behind. All things considered it would have been hard to disappoint me based on the first company I had hired, but I really felt like Modern Air HVAC went above and beyond to make sure the job was done right and that I was happy. I highly recommend these guys for any HVAC issues!

Top Pro
Northshore HVAC/R Services
5.0
from 30 reviews
  • 12 years in business
  • 45 hires on Thumbtack
  • Top Pro on Thumbtack
Jon O.
Verified review

North Shore HVACR was a lifesaver, the AC was gone in two rental units. Another contractor had transportation issues getting the job done (it happens), however we were now in a heat wave the day before the 4th of July. Lewis' team came to the rescue, even on the holiday, and had both units cooling off our great tenants in no time. This level of professional dependability is a treasured asset.

BMB Services LLC
5.0
from 26 reviews
  • 3 years in business
  • 24 hires on Thumbtack
Judy L.
Verified review

I felt that Brandon was honest. As a lay person, I'm at the mercy of a technician or contractor and believe many blow up the charges and the work that needs to be done to inflate their price. He explained what needed to be done and why. Brandon was also very personable. He is now on my referral list should anyone need an hvac. Brandon is not making a fast buck but he is making life long clients.

Top Pro
Cornerstone IAQ Services LLC
5.0
from 21 reviews
  • 3 years in business
  • 22 hires on Thumbtack
  • Top Pro on Thumbtack
Tracey M.
Verified review

Who would have thought that honest, professional and knowledgeable contractors existed? Here they are!

Donahue Heating and Cooling
5.0
from 17 reviews
  • 4 years in business
  • 24 hires on Thumbtack
Cara M.
Verified review

We woke up to 2 degrees Fahrenheit and NO HEAT! We tried reaching our regular gas furnace maintenance contractor and several other local contractors without any luck. When we found Tim through Thumbtack we were so grateful. He quickly assessed our issue over the phone, purchased the part and got to our house that same day. Thank goodness! Not only is a he a professional but very personable too. We plan to contract Tim again to install a humidifying system. Thanks Tim!

  • 9 hires on Thumbtack
Nick P.
Verified review

Omer Begin does great HVAC and piping work! Omer has worked with us for years and we would recommend his services. Omer has competitive prices and gets jobs done fast. He is currently doing some piping for generator work at the Millyard Technology Park in Nashua. Omer is fully certified and insured for the work he does.

DunRite Service Contractors
4.8
from 4 reviews
  • 29 years in business
  • 4 hires on Thumbtack
Michelle L.
Verified review

I must say I was a bit nervous at first because DunRite. Did not have any reviews on Thumbtack and they were new to the site but I am glad I didn't judge a book by its cover because I am more than happy with the job they did they showed up 10 minutes early and I spoke with the owner jarek and was surprised how much knowledge he had. I had my old Central air system replaced and a mini split installed in my 4 season sun room. The job came out amazing I highly recommend them and will definitely use them again for all my HVAC needs

B&N Mechanical
4.8
from 4 reviews
  • 2 years in business
  • 6 hires on Thumbtack
Minh H.
Verified review

I was looking for an HVAC pro to do periodic maintenance for a few A/Cs, commercial roof-top type. B&N showed up at promised times and serviced the units expertly. Robert (the tech.) also correctly diagnosed and repaired a few problems which defied attempts by prior guys. I am glad to have found a new go-to guy for HVAC - highly recommended!

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We are trained and certified to install, service and maintain high efficiency and ultra high efficiency systems.

Q & A

Answers to commonly asked questions from the experts on Thumbtack.

Who fixes furnaces?

If your furnace needs to be repaired, you’ll want to find a qualified heating, ventilating and air conditioning (HVAC) repair technician. Each state has its own licensing requirements; some require all HVAC technicians to have an HVAC license, while others only require someone operating an HVAC service and installation company with employees to hold a contractor’s license. For example, in Alabama, the Alabama Board of Heating Air Conditioning, and Refrigeration Contractors regulates licensing, while in Kansas there is no state regulatory body and HVAC licensing can vary by region. For simple furnace repairs like changing out a filter, a trusted handyman can probably handle the job, but a trained professional should be hired for tasks like replacing a gas valve, installing a new inducer fan motor or other critical furnace repair jobs that involve dealing with gas leaks or other dangerous conditions. For more, check out our tips for smart hiring on Thumbtack.

How often should you get your air ducts cleaned?

How often you should clean your air ducts depends on your situation. If you or someone in the home has asthma or is acutely allergic to certain airborne materials or pollen, regular duct cleaning may be helpful. The Environmental Protection Agency doesn’t have an official position on the necessity of air duct cleaning unless the ducts have been contaminated by rodents, insects or mold, or you are aware of particles blowing out through the vents. The EPA recommends you have your air ducts cleaned on an as-needed basis. The National Air Duct Cleaners Association (NADCA) suggests having air ducts cleaned every three to five years.

Be cautious with companies that offer “whole house air duct cleaning,” urges the NADCA. The company may be using unscrupulous tactics to upsell you once they get started. Before any work begins, always clarify in writing what the job entails and what the cost will be. To protect yourself against fraud, read customer reviews and verify that your HVAC cleaning service has applicable licenses and certifications.

What is an HVAC system?

The letters in HVAC stand for heating, ventilation and air conditioning. An HVAC system enables you to regulate your home or building’s internal temperature (thermal control) for comfortable living and working. You can bring heat levels down in the summer and up in the winter, keeping your home or office livable year-round. HVAC systems can also help with humidity levels and regulate indoor air quality in a home or office. There are many types of HVAC systems and technologies available.

Many homes have a forced-air HVAC system. Both the heating and the central air conditioning units share a ductwork system where they either push in or pull out warm or cooled air. There are also heating and cooling systems that don’t require ductwork — such as ductless mini-splits — but work on the same principles of heat exchange. The national average to hire an HVAC specialist is $2,920-$3,670, with costs varying depending on the work you need done and the equipment you are installing.

Do you need to clean your air ducts?

Air duct cleaning is done by heating, ventilation and air conditioning (HVAC) professionals. The pros use industrial-strength, truck-mounted vacuums and powerful brushes and hoses to clean inside the metal ducts that make up your forced air heating and cooling system. The Environmental Protection Agency recommends duct cleaning if there is “substantial visible mold growth inside hard surface ducts, ducts that are infested with vermin such as rodents or insects, or ducts that are clogged with excessive amounts of dust and debris and/or particles are actually released into the home from your supply registers.”

You should also have air ducts cleaned after recent water contamination or water damage to prevent mold; after renovations or remodeling to ensure debris and dust didn’t settle in the vents and ducts; if you are having problems with allergies or asthma; or when you are moving into a newly purchased home, especially if the previous owners smoked or had pets. The National Air Duct Cleaners Association (NADCA) recommends getting your air ducts cleaned every three to five years, or every two to three years in regions where homeowners use their air conditioning and heater for many months of the year, while the EPA suggests homeowners have duct cleaning done as needed.

How many years does HVAC last?

The number of years an HVAC system lasts depend on the type and brand of components that make up your system. The lifespan of an air conditioner averages between 15 and 20 years. The life expectancy of a tankless water heater is approximately 20 years, while a storage water heater is closer to 10-15 years. Ducts may need replacing within 10-15 years. Your equipment will have a longer life if you have regular tuneups and maintenance to keep everything in good working order. If you’re having repair problems and your HVAC system is over 10 years old, it’s a good time to consider the costs and benefits of repairing vs. replacing. Energystar.gov provides the following tips to help you decide whether to repair or replace:

  • Your HVAC system needs frequent repairs and your energy bills are increasing.
  • Your cooling or heating equipment is less efficient.
  • Rooms in your home are too hot or too cold.
  • Your heat pump or air conditioner is more than 10 years old.
    • Replacing your system with an Energy Star-certified unit could save up to 20 percent on your heating and cooling bills.
  • Your furnace or boiler is more than 15 years old.
    • You may choose to replace your system with an Energy Star-certified furnace (which is 15 percent more efficient than a conventional furnace) or an Energy Star-certified boiler (which is 5 percent more efficient).
  • Your home has humidity problems.
  • Your home has excessive dust.
    • Leaky ducts can pull particles and air from attics, crawl spaces and basements and distribute them throughout your house. Sealing your ducts may be a solution.
  • Your heating or cooling system is noisy.
    • You could have an undersized duct system or a problem with the indoor coil of your cooling equipment.
  • Your score on the Home Energy Yardstick is below five.
    • That means your home energy use is above average and you're probably paying too much for your utilities.
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