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Modern Construction Specialties, Inc.

Licensed
Licensed
Contact for price

Wall removal required

It’s free, with no obligation to book


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About
Modern Construction Specialties, Inc. (MCSI) Delivering craftsmanship you can trust. At MCSI, we take pride in providing exceptional quality workmanship at affordable prices. As a fully insured and California‑licensed contractor, we bring more than 13 years of proven experience in residential and commercial construction, renovation, and maintenance. Our commitment to 100% customer satisfaction is non‑negotiable—we don’t settle for anything less, and neither should you. Clients choose us for our superior attention to detail, reliable communication, competitive pricing, and consistent on‑time project delivery. Whether it’s a small upgrade or a full‑scale renovation, MCSI delivers professional results with integrity, efficiency, and care
Overview

Hired 30 times

Serves El Cajon, CA

Background checked

License verified

6 employees

14 years in business

Business hours

SunClosedMon6:00 am - 6:00 pm

Payment methods

This pro accepts payments via Cash, Check, Credit card, Square cash app, Venmo, and Zelle.

Credentials

License verified

B - General Building Contractor

License state: CA

Background checked

Passed by Carlos Diaz on Feb 8, 2023.

Projects and media
Projects and media
Reviews

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

Good 4.3

24 reviews

5

79%

4

4%

3

0%

2

0%

1

17%

Read reviews that mention:


pro avatar
Matthew W.

Dec 29, 2025

Hired on Thumbtack

Carlos did a great job repairing drywall that was damaged from a leaking water heater. I’m looking forward to working with him again in the future!

Details: Apply finishing • Patch damaged drywall • Replace one or more sheets of drywall • 1 room • Wall(s) • Residential

Drywall Repair and Texturing
pro avatar
Antony J.

Jun 1, 2025

Hired on Thumbtack

Carlos fixed a rotten floor joist problem in two days that I was struggling with for a month! Great guy who explained what he was going to do and then got it done. We will be going back to him for bigger projects.

Details: A full day (Complex or long-term projects) • Repairs • Bathroom • Walls (inside) • Walls (outside) • Home

Handyman
pro avatar
Devin H.

May 4, 2025

Hired on Thumbtack

The contractor was professional, showed up on time, and completed the work quickly. The patched areas look clean and well-blended. Would recommend for basic wall repairs and patch jobs

Details: Patch damaged drywall • 1 room • Wall(s) • Residential

Drywall Repair and Texturing
pro avatar
LAN y.

Apr 3, 2025

Hired on Thumbtack

Details: Leaks • Residential

Home Waterproofing
pro avatar
Robin O.

Nov 25, 2024

Hired on Thumbtack

Went the extra mile to make sure that everything was to my liking and that the mailbox replacement was USPS approved and installed to last. Thanks Carlos!

Details: 2 - 5 hours (A few different projects) • Installation • Assembly • Basement • Walls (outside) • Home

Handyman