If you hire this pro, you’re covered by a money-back guarantee. Learn more
If you hire this pro, you’re covered by a money-back guarantee. Learn more
About
Welcome to Ruffini Engineering Services, your trusted partner in engineering excellence. Since 2015, we've provided top-tier services like structural design, consulting, and project management across CO and FL.
With a skilled team, integrity, and dedication, we always tackle every challenge and deliver quality results.
Licensed, insured, and community-oriented, we're not just engineering the future but shaping communities and building dreams.
RES - where excellence meets trust.
Overview
Hired 11 times
Serves Denver, CO
Background checked
License verified
6 employees
11 years in business
Business hours
SunClosedMon9:00 am - 6:00 pm
Payment methods
This pro accepts payments via Apple Pay, Cash, Check, Credit card, PayPal, Venmo, and Zelle.
Customers rated this pro highly for work quality, responsiveness, and value.
Great 4.7
62 reviews
5
92%
4
0%
3
0%
2
2%
1
6%
This pro's rating is a combination of reviews posted by customers both on and off of Thumbtack. Thumbtack cannot verify external reviews.
Your trust means everything to us. Learn about our review guidelines.
Read reviews that mention:
Brett P.
Aug 5, 2026
•
Hired on Thumbtack
Tony and Erin were extremely responsive by phone and email and easy to work with. They listened to my concerns and addressed every one of them in an extremely thorough stamped letter. I will use them again if I need engineeringservices in the future.
Details: Addition attached to building or residence • Stamped drawings for building department approval • Residential
Structural Engineering Services
Ana S.
Apr 10, 2026
•
Hired on Thumbtack
We highly recommend this company. They were honest, helpful and easy to work with throughout the process. Erin made scheduling simple and smooth, and Anthony was thorough, knowledgeable and very transparent with us. We truly appreciated their professionalism and support.
Details: Structural repair to an existing structure • Load bearing wall and/or beam specifications • Residential
Structural Engineering Services
Tiffany T.
Aug 5, 2026
•
Hired on Thumbtack
Was able to refer some repair companies that will help but they were very professional
Structural Engineering Services
Nicole M.
Aug 18, 2026
•
From Google
Special thanks to Tony for his passion, attention to details, and customer-focused services! You helped our community in Erie!
Joanne C.
Aug 3, 2026
•
From Google
I highly recommend RES co. They were prompt, flexible with scheduling and very communicative about the problem I needed professional support with.
FAQs
What should the customer know about your pricing (e.g., discounts, fees)?
Onsite consultations in our service area are $350
Sealed engineering opinion letters start at $250
As a team, we split the tasks differently by role; and most projects are a mix. Typical pricing is:
$90/hr for drafting
$120/hr for associate engineering (the bulk of most projects)
$200 for Principal engineering
What is your typical process for working with a new customer?
It usually starts with a free phone discussion. Sometimes, an onsite survey/inspection is required. Other times, with the correct info/documents, we can perform services without going onsite.
We are always available to answer questions as they come up.
What education and/or training do you have that relates to your work?
Our team has undergraduate and graduate degrees in engineering and architecture. In addition, we are licensed in several states including CO to perform work.
