Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Belmont
If you’re planning a remodel, addition, or ADU in Belmont, the question isn’t whether you can find a contractor. It’s whether the contractor understands what Belmont’s aging housing stock and hillside terrain actually demand. Iron Beam Contractors brings full-scope general contracting to Belmont, from interior remodels to roofing, windows, hardscaping, and prefab ADU installation. We sequence the work properly: inspection and geotech sign-off first, demolition second. Call us at (833) 756-5936 to schedule a free estimate, and we’ll walk your property before anyone swings a hammer.
Why Iron Beam Contractors Is Belmont’s Preferred General Contractor Company
Belmont homeowners keep calling us for one reason: we quote work the way a structural engineer would, not a salesperson. That means a real inspection, written allowances for what the walls might hide, and a contract that says what happens when a surprise shows up. We don’t broker subcontractors and disappear. Our team, led by Nolan Driscoll, manages every phase from the first cabinet pull-out to the final roof inspection.
We’ve worked enough Belmont jobs to know what the building department on Twin Pines Lane will ask for, and we’ve opened enough 1950s ranchers off Ralston Avenue to know what’s behind them. That local knowledge means fewer change orders you didn’t see coming, and a schedule that holds because we pulled the right permits in the right order.
We’re licensed and insured, and every job gets a written line-item quote. No allowances that balloon. No subcontractor roulette. One contractor, every phase.
Styles & brands we work with
Hire a General Contractor in Belmont
Hire a General Contractor in Belmont when your project spans more than one trade, or when the house itself is old enough that you don’t know what’s behind the drywall. A general contractor owns the whole job: demolition, framing, rough-in, finishes, and the permit inspections that go with each stage. In Belmont, where most homes are 60 to 100 years old, the general contractor’s real job is sequencing the unknowns so the project doesn’t stall.
Typical Belmont remodel pricing: a kitchen remodel runs $14,000 to $45,000, a bathroom remodel $9,000 to $28,000, and a roof replacement $8,000 to $20,000. Those are the ranges we quote against after a walkthrough and inspection, not before.
Inspection Before Demolition
We open permits, schedule the inspection, and walk the property before we commit to numbers. If the house was built in the 1940s and still has original wiring, we’d rather know that before the contract is signed than after the wall is open.
Allowances in the Contract
Every remodel on an older Belmont home gets a written allowance for hidden conditions. If we find undersized framing, rotted sill plates, or cloth-wrapped wiring once the wall is open, the price and the reframe are already part of the agreement, not a surprise change order.
General Contractor Services in Belmont
General Contractor Services in Belmont cover the projects Belmont homeowners actually tackle: whole-house remodels on postwar ranchers, second-story additions on hillside lots, ADUs, garage conversions, and exterior envelope work like roofing and siding. We handle it all under one agreement, with one point of contact for every phase.
In Belmont, a home addition runs $45,000 to $130,000. An ADU construction project runs $90,000 to $220,000. A garage conversion runs $30,000 to $80,000. Those ranges assume the hillside grading and geotech reports are already in hand, which is exactly the part most contractors forget to mention.
Additions and ADUs
We build additions and ADUs on Belmont’s hillside lots regularly. That means engineered foundations, retaining walls where the slope demands them, and a start date that waits on geotech sign-off, not the framing crew.
Kitchen and Bath Remodels
We open the walls, fix the wiring and framing the last remodel skipped, and close it back up with the materials you actually specified. KraftMaid cabinetry, James Hardie siding on the exterior, and Schluter waterproofing in the wet zones.
What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Belmont
Our brand portfolio matters because a Belmont remodel shouldn’t stall while you source materials from three different vendors. We’re authorized to install KraftMaid cabinetry, James Hardie siding, Plant Prefab ADU systems, and Tuff Shed structures, among 50+ other manufacturers across cabinetry, countertops, roofing, windows, and hardscaping. For Belmont homeowners, that means we can pull the GAF roof or the KraftMaid cabinet order the same week the contract is signed, not six weeks later. One contractor, every material, one accountable schedule.
Common General Contractor Problems We See in Belmont Homes
- Outdated wiring and undersized framing. Open a wall in a 1950s rancher near Hill Street and you’ll often find cloth-wrapped wire and a load-bearing header someone notched down for a pass-through. The permit triggered by that discovery is what saves the house, but it changes the quote.
- Waterproofing failures from past flips. A shower pan or deck membrane that wasn’t properly waterproofed can look cosmetic and be structural. We find them in Belmont’s stucco ranchers all the time, and we don’t close them back over.
- Hillside drainage and retaining wall issues. Expansive clay soil on lots east of El Camino Real swells every winter and puts lateral pressure on older retaining walls. Cracks show up in foundations when drainage was an afterthought.
- Permit history gaps. Many Belmont homes from the 1920s and 1930s have had unpermitted additions or converted garages. We pull the permits, bring the work to code, and pass the inspection before we build on top of it.
See the difference
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After
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After
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AfterPricing for General Contractor in Belmont, CA
Here’s what we see across Belmont in 2026, based on current local labor and material rates. A kitchen remodel runs $14,000 to $45,000; a bathroom remodel $9,000 to $28,000; a roof replacement $8,000 to $20,000; a home addition $45,000 to $130,000; an ADU $90,000 to $220,000; a garage conversion $30,000 to $80,000. Two things move these numbers in Belmont specifically: hillside grading and geotech reports, which flat-lot cities like San Carlos rarely need, and the age of the wiring and framing behind your walls. We quote those as line items, not hidden contingencies.
| Project | Belmont Market Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
Call (833) 756-5936 for a free estimate. We walk your Belmont property, inspect what’s there, and give you a written line-item quote before you sign anything.
We Also Serve Cities Near Belmont
Iron Beam Contractors serves Belmont and the surrounding Peninsula communities, including San Carlos, Highlands-Baywood Park, San Mateo, and Redwood Shores. If you’re in one of those cities and looking for a General Contractor who handles remodeling, additions, ADUs, and exterior work under one agreement, we’re the team to call. The same inspection-first process applies whether your home is a flat-lot rancher in San Carlos or a hillside property in Belmont.
Serving Belmont, CA — Our Local Coverage Area
We’re based in the Belmont area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About General Contractor in Belmont
Because most Belmont homes were built between the 1920s and 1970s, and the original wiring and framing were never meant for modern loads. We open the walls after inspection, document what’s there, and price the fix as a written change order before closing anything back up. Our contract includes allowances for these discoveries, so the quote holds. Call (833) 756-5936 to schedule a free estimate and we’ll inspect before we quote.
Yes, on any hillside lot east of El Camino Real. Belmont’s building department reviews grading and geology reports more closely than neighboring flat-lot cities, and the start date usually waits on that sign-off, not on rain or framing crews. We sequence geotech and permit review before demolition.
It means we write a dollar amount into your contract for hidden conditions, like outdated wiring or undersized framing, before we ever open a wall. If we find something, the fix is priced against that allowance and approved in writing. You’re never surprised by a change order you didn’t authorize.
It can. Belmont’s wet winters run November through March, and concrete work, grading, and exterior framing all pause during heavy rain. But we plan around it by sequencing interior work during wet months and exterior work during the dry season. Call (833) 756-5936 and we’ll give you an honest schedule for your specific project.
We pull permits on every project. Skipping them in Belmont is a bad bet: the building department is small, they know the housing stock, and unpermitted work gets flagged when you sell. We’d rather pass the inspection than look over our shoulder.
Contact Iron Beam Contractors in Belmont
If you’re planning a remodel, addition, or ADU in Belmont, call us at (833) 756-5936 to schedule a free estimate. We’ll walk the property, inspect what’s there, and give you a written line-item quote. Nolan Driscoll and the Iron Beam Contractors team are ready to start the right way: inspection first, permits pulled, and a schedule that holds.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving Belmont since our founding.