001
Masonry
Tuckpointing, brick & stone restoration, lintel repair, structural stabilization, waterproofing, and cleaning. The work that keeps Chicago standing.
[01] General Contractor
Building Chicago since 2014
From masonry restoration to full HVAC systems — six trades, one crew, every project on time.
A general contractor
for buildings that last.
We started 312 Master Construction with a simple rule: keep every trade in-house, so the same crew that frames a wall is the one that closes it up.
Twelve years and a few hundred jobs later, that rule still runs the shop. We work on Chicago two-flats and graystones, restore century-old brick, swap furnaces in January and replace roofs in July — all under one license, one insurance certificate, and one project manager who answers the phone.
See what we do →
- 0+ Projects delivered
- 0 Years on Chicago job sites
- 0 Trades kept in-house
- A+ BBB rating, fully insured
Six divisions.
One accountable crew.
002
Roofing
Flat and pitched roofs, full replacements, leak detection, flashing repair. Commercial buildings and three-flats both.
003
Plumbing
Repairs, new installations, drain & sewer lines, water heaters, leak detection, and emergency calls when a pipe goes at 2 a.m.
004
Electrical
Service upgrades, panel work, full rewires, lighting, outlets, breakers, and code-compliant safety inspections for older Chicago stock.
005
HVAC
Furnaces, boilers, central air, heat pumps. Full installs, swap-outs, and seasonal maintenance contracts for landlords.
006
Windows & Doors
Energy-efficient replacements, custom entry doors, sliders and patio sets. Glass that respects the architecture.
From site visit
to sign-off.
-
01
Walkthrough
A licensed contractor visits the property within 48 hours. We measure, photograph, and listen. No subcontracted estimators.
-
02
Itemized estimate
You receive a line-item proposal with materials, labor, timeline, and a fixed total — usually inside three business days.
-
03
Permits & schedule
We pull every permit the City requires and book the crew the same week the contract is signed. You get a calendar, not a guess.
-
04
Execution
One project manager runs the job from demolition to punch list. Daily site cleanup. Photo updates. Real names, real phones.
-
05
Sign-off & warranty
Final walkthrough, lien waivers, and a written warranty on workmanship. We come back if something needs to be made right.
Seven neighborhoods.
One area code.
- 60657Lakeview
- 60614Lincoln Park
- 60647Logan Square
- 60610Near North Side
- 60618North Center
- 60622Ukrainian Village
- 60642West Town
- ———Not on the list?
Ask us.
On the books.
The job, finished.
The phone, answered.
/01
Fixed-price contracts
You sign a number, not a range. Change orders are written and signed before any work changes.
/02
One project manager
The same person from estimate to walkthrough. No handoffs, no “I'll have to check.”
/03
City of Chicago licensed
General contractor license #TGC-098-734. Bonded, insured, OSHA-compliant on every site.
/04
Two-year warranty
Written warranty on workmanship. We come back if something needs to be made right.
What gets said
after we leave.
“Three other contractors gave me a price for tuckpointing my graystone. 312 Master gave me a plan, a calendar, and a person to call. The work is invisible — which is exactly the point.”
“Furnace died in February with tenants in the building. They had a new system in by the next afternoon and didn't pad the bill for it. That's all I needed to know.”
“Full gut rehab on a 1908 two-flat. They handled masons, roofers, plumbers, electricians and HVAC under one contract. I called one number for nine months.”
[09] Start a project
Let's build something
Let's build something
that outlasts us.
Tell us about the property and the work. We'll be on site within 48 hours with a real estimate.