CornerStone77 LLC

$150/on-site estimate

Estimated price

Select a service

Zip code

Scheduling

Door material

Door(s) purchased?

About

I'll take each job seriously. No job too small. When I joined US Army I fixed helicopters. Attention to details is a must because lives of people depend on quality work. I carried this attitude to civilian life.

Overview

Hired 667 times

Serves Haymarket, VA

Background checked

1 employee

7 years in business

Business hours

SunClosedMon9:00 am - 9:00 pm

Payment methods

This pro accepts payments via Cash, Check, Credit card, PayPal, Venmo, and Zelle.

Top Pro status

Top Pros are among the highest-rated, most popular professionals on Thumbtack.

2023

Services offered

Door type(s)

Additional services

Paint or stain the door

Install locks or hardware

Install a door threshold

Install new trim around the door

Property type

Home

Multi-unit building

Office / business

Commercial

Reviews

Customers rated this pro highly for work quality, professionalism, and responsiveness.

Very good 4.6

266 reviews

5

86%

4

4%

3

1%

2

3%

1

6%

Read reviews that mention:

Mark D.

Oct 7, 2025

•

Hired on Thumbtack

Val set up a virtual wood shop in my driveway and made a tricky repair of a broken interior door look easy. Couldn't be happier with his work. Five stars plus.

Details: Interior door (e.g. bedroom door, closet door) • Basic door (swings open and shut) • Wood • Home

Door Repair

Steven R.

Sep 22, 2025

•

Hired on Thumbtack

Val did a great job installing my storm door. I am highly satisfied with his professionalism and his workmanship.

Details: Storm or screen door • 1 door • Standard • Glass • No, but the door frame exists • Yes, I already purchased the door • Home

Door Installation

Lisa M.

Jul 25, 2024

•

Hired on Thumbtack

Val responded quickly to my inquiry. He determined the cause of an interior door that had jammed. Then he went to the store and purchased a new door lock that was needed and installed it successfully. I would contact Val again if needed.

Details: Interior door (e.g. bedroom door, closet door) • Basic door (swings open and shut) • Metal • Home

Door Repair

Cristl P.

Mar 21, 2025

•

Hired on Thumbtack

Handyman Val successfully completed 5 items for us including: replaced toilet internals to stop water running, replaced outside broken dryer vent covers, replaced faulty recessed light, replaced bedroom door knob and hung a bedroom large painting. Val did an excellent job, acted professionally and communicated well. We will hire him again for future handyman needs.

Details: 2 - 5 hours (A few different projects) • Maintenance • Repairs • Bathroom • Basement • Doors • Plumbing • Home

Handyman

Keesha B.

Feb 5, 2025

•

Hired on Thumbtack

Details: Walls • Replacement of portions of existing structure • Residential

General Carpentry

Credentials

Background Check

Valeriy Agafonov

FAQs

What should the customer know about your pricing (e.g., discounts, fees)?
Most of our services fee $170 which includes inspection of the unit/equipment/houses/area of works. We diagnose why your stove, dishwasher, dryer, refrigerator, lawnmower, grill, etc not working. Find right parts or materials and order them.
What is your typical process for working with a new customer?
When we received request or booking from new customers and scoop of work not clearly explain in description, we ask customer to explain details of work. Asking pictures of the area of work. Model number of the equipment.
What education and/or training do you have that relates to your work?
For the construction work (woodwork, electrical, plumbing) I have around 16 years of experience For the equipment work I have 8 years of experience working with different of electronics For lawnmower I have directly 6 years of experience + 6 years I fixed helicopter and 13 years military ground vehicles including generators.