A new rear addition with a vaulted beamed ceiling and tall windows
General Contractor · Bostonia, CA

General Contractor in Bostonia - Written Fixed-Price Quotes, Permits Handled

Free on-site estimate and a written, line-item quote before any work begins. One contract, one crew, one accountable point of contact. Licensed, insured, permits handled.

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A wide opening with a new beam where the kitchen wall was removed
A garage converted into a guest room and home office
A built-in window seat in a bay window
A dining nook with a built-in banquette
A home office with a built-in desk and shelves
A remodeled kitchen with a waterfall island and wood cabinets
A wood double vanity with two mirrors after a bathroom remodel
An open living space after a whole-home remodel
Every visit starts with

Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled

Your dream remodel for as low as$199/month*On approved credit; ask for current terms
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Fast, Reliable General Contractor Across Bostonia

A full kitchen remodel in Bostonia typically runs $16,520 – $53,100, and a bathroom remodel lands between $10,620 and $33,040. Those are real numbers, written down before any work starts, so you know what you’re signing. Mason Remodeling serves Bostonia homeowners with written pricing, verified crews, and a full year of coverage on completed work. Call (803) 680-2547 to talk through your project with a live person, any day of the week.

Call (803) 680-2547

What makes Bostonia different from most of San Diego County is simple: it’s unincorporated. That means building permits, plan checks, and inspection sign-off route through the County of San Diego, not a City of Bostonia building department. That single fact changes paperwork, turnaround times, and who you call when a question comes up mid-project. We’ve handled enough County-permitted work in Bostonia to know exactly how that process moves, and we build it into the schedule from day one.

Why Mason Remodeling Is Bostonia’s Preferred General Contractor Company

A second-story addition that matches the existing roofline

We know Bostonia’s housing stock because we’ve worked in it: 1950s and 1960s single-story ranches off Bradley Avenue, split-levels near the Bostonia County Park area, and the occasional newer infill build with different structural bones entirely. Older homes here hide things, and we plan for that. You’ll get a written scope of work with real allowance line items for cabinets, counters, and fixtures before demolition starts, and a written change order for anything unexpected we uncover along the way.

Every technician who walks your door is background-checked, identity-verified, and introduced to you by name and photo before the visit. That’s the Threshold Standard, and it applies on every single job, no exceptions. Your crew arrives in clean marked uniforms, shows photo ID at the door, and answers to Isaac Pruett, who leads our general contracting work across Bostonia.

Since 2004, Mason Remodeling has operated under the Threshold Group family of home-service companies, with written guarantees on every completed project. If something isn’t right within 365 days of completion, we make it right at no cost to you. That’s the 365-Day Done Right Promise, and it covers general contracting, bathroom remodeling, and whole-home remodels.

Explore

Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

General Contractor Services in Bostonia

General Contractor Services in Bostonia cover the full sequence of a construction project: demolition, structural work, rough-in for plumbing and electrical, drywall, finishes, and the final punch list that gets you to a County inspection sign-off. A Bostonia homeowner needs a general contractor when the job touches more than one trade, because someone has to sequence the electrician before the drywall crew and the plumber before the tile setter, and that someone should be accountable for the whole result.

Scoping and Written Pricing

Before we touch a wall, you get a written price. That includes a line-by-line scope of work, not a napkin number. Kitchen remodels in Bostonia run $16,520 – $53,100 depending on footprint, cabinet grade, countertop material, and whether walls move. We write allowances for things like KraftMaid cabinetry or Cambria counters so you pick the finish without blowing the budget.

Scoping and Written Pricing

County Permits and Inspections

Bostonia jobs go through County of San Diego plan review, which means your permit set needs to be complete and correct before submittal, or the whole schedule stalls. We pull permits under the correct jurisdiction, schedule inspections at the right milestones, and don’t let a trade cover up work that hasn’t been signed off. That discipline keeps your project moving and keeps the final close-out clean.

County Permits and Inspections
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What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Construction Company in Bostonia

A finished backyard cottage with a small covered porch

Construction Company work in Bostonia means full-scale residential projects: room additions, whole-home remodels, garage conversions, and ADU construction. These are not weekend projects. An addition in Bostonia runs $53,100 – $153,400, and an ADU can reach $259,600 depending on size, site conditions, and utility runs. The right company manages the draw schedule, the inspections, and the trades so the project finishes on the calendar we agreed to, not two months late.

Foundations and Structural Work

Bostonia sits on soil that shifts with the seasons, and older homes here have foundations that have lived through decades of that movement. Before we frame an addition or open a load-bearing wall, we check what’s underneath. A slab that looks fine from the surface can hide cracks or settling that changes the engineering. We find it in the scoping phase, not after the drywall is hung.

Additions and ADUs

Room additions and ADUs in Bostonia trigger County plan review, and depending on the scope, they may also require Title 24 energy compliance documentation. We handle that paperwork as part of the written scope, and we walk you through what each inspection covers before the inspector arrives. No surprises.

Trusted Brands We Service in Bostonia

We install and work with specification-grade products from Kohler, Moen, Cambria, Silestone, KraftMaid, and Wellborn, along with roofing materials from GAF and CertainTeed. Because our Bostonia customers often ask about factory-built ADU systems, we’ve also worked with products from Abodu, Cover, and Dvele where the site and budget align. We keep the product selections in our written allowances, so the brand choices you make mid-project have a home in the budget from the start, not as a surprise line item at the end.

Before & after

See the difference

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Common General Contractor Problems We See in Bostonia Homes

  • Pulling permits from the wrong jurisdiction. Bostonia is unincorporated, so a homeowner or contractor who files with the City of El Cajon or another neighboring city loses weeks before the County even sees the plans. We file with the County of San Diego from day one.
  • Quoting from a napkin number with no allowances. A verbal estimate of “$30k for the kitchen” means nothing when you pick mid-grade cabinets and a quartz counter. We write allowance ranges for every finish selection, in dollars, before the contract is signed.
  • Skipping written change orders. Old Bostonia ranches hide rot in subfloors and surprise load-bearing conditions. When we open a wall and find something structural, you get a written change order with a price and a signature line before the next trade moves.
  • Ignoring the inspection sequence. Covering up rough-in electrical or plumbing before the County inspector signs off is a recipe for tear-out and rework. We schedule inspections at rough-in, at insulation, and at final, and we don’t let work get buried before it’s cleared.

Pricing for General Contractor in Bostonia, CA

Here are the price ranges we write into Bostonia contracts, based on the scope of work and the finish level you choose:

Project Bostonia Price Range
Kitchen Remodel $16,520 – $53,100
Bathroom Remodel $10,620 – $33,040
Home Addition $53,100 – $153,400
ADU Construction $106,200 – $259,600
Garage Conversion $35,400 – $94,400
Roof Replacement $9,440 – $23,600
Window Replacement $5,310 – $17,700

What moves the price? Footprint, structural changes, the grade of cabinets and counters, and what we find behind the walls. A small kitchen remodel with stock cabinets lands near $10,620. A full kitchen with moved walls, custom cabinetry, and a Cambria island can push past $53,000. Every Bostonia estimate from Mason Remodeling is free and written. Call (803) 680-2547 and we’ll scope it properly.

We Also Serve Cities Near Bostonia

Our crews serve Bostonia and the surrounding region, including Los Angeles, San Diego, San Jose, and San Francisco. If you’re searching for a General Contractor near Bostonia or a General Contractor in Bostonia specifically, the same Threshold Standard applies on every job, in every city.

Serving Bostonia, CA - Our Local Coverage Area

We’re based in the Bostonia 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 Bostonia

Why Bostonia Chooses Mason Remodeling

We set the standard for general contractor in Bostonia.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in Bostonia

Getting your general contractor handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your general contractor needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Bostonia - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local general contractor pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Bostonia Customers Say

Trusted by homeowners across Bostonia and surrounding areas.

★★★★★

"Very respectful in the house. Shoe covers every day and a cleanup every evening."

Alma V. · Verified customer
★★★★★

"Opened up the wall between kitchen and dining room. They handled the beam and permit and the floor transitions look seamless."

Wendy A. · Verified customer
★★★★★

"Kitchen remodel with new cabinets, quartz counters, and a tile backsplash. Crew had ID and were background checked. Kept the work area clean and sealed off dust from the rest of the house."

Janice D. · Verified customer

Ideas for every room in the house

Built-ins, window seats, family rooms and staircases: the changes that make a whole house work better.

Read our remodeling guides
A galley kitchen opened up to the dining room with a new peninsulaA walk-in shower with large-format tile and a built-in nicheA remodeled family room with new windows and a window seatA stone counter, tile backsplash and open shelf after a kitchen remodelA remodeled hall bathroom with subway tile and a floating vanityA remodeled primary suite with built-in wardrobes and a window seat

More remodeling services in Bostonia

Every project below starts the same way: a free on-site visit and a written price.

Getting started with Mason

Every project starts with a conversation and a written price. Here is how to take the first step.

A project lead measuring a kitchen with the homeowner during a free estimate

Free on-site estimate

A project lead walks the job with you, measures it and hands you a written, line-item price. No obligation.

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A remodeling crew arriving at a home with lumber and tools

Find your local team

Each location is independently owned and works to the same written standard. Enter your ZIP code to reach yours.

A worker laying floor protection and a dust barrier before work starts

Read our written promise

What we promise on every job, written down, with the terms spelled out before any work starts.

Our promise

Current Offers

Bring these savings to your next appointment.

Free On-Site Estimate & Written Quote

No obligation. We measure, price the job in writing, and the quote is yours to keep.

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Written Price Before Any Work Starts

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Included

Written Guarantee on Every Repair

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Free

Free Second Visit if the Repair Fails

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(803) 680-2547

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