
Service Areas
Home Builder & Remodeling Contractor in Gaithersburg, Maryland
Custom home building and full-scope remodeling for Gaithersburg homeowners, from a contractor headquartered right here in town.
Excell Homes is headquartered in Gaithersburg, at 16021 Industrial Dr, Suite 08, Gaithersburg, MD 20877, and you can reach that office directly at (301) 832-0409. This is our home market rather than a service area we drive out to, so our project managers and crews are minutes from your property. Over 20+ years we have completed 2,500+ projects across Washington DC, Maryland, and Northern Virginia, and a good share of that work has been here in Montgomery County.
Homeowners here often come to us looking for a home builder rather than a remodeler, and we do both. Our portfolio includes new-home construction alongside large-scale renovation, and on the building side we handle design, engineering, Montgomery County permitting, and construction under one fixed-price contract. If you are weighing building versus renovating, we will give you an honest read on which makes more sense for your lot and your budget rather than pushing you toward the bigger job.
On the remodeling side the work is kitchens, bathrooms, additions, basements, and whole-home updates. Gaithersburg mixes older housing stock with much newer development, so the right approach changes street to street and we scope every home on its own terms. Homes inside the city limits are permitted by the City of Gaithersburg, and those just outside by Montgomery County's Department of Permitting Services; we work with both constantly, and we cover the surrounding area the same way: Rockville, North Potomac, Germantown, and Montgomery Village.
Permits & local know-how
Building and permitting in Gaithersburg, MD
Gaithersburg has the same municipal split as Rockville: the City of Gaithersburg issues its own building permits for homes inside the city limits, while properties just outside, in North Potomac, parts of Germantown, and unincorporated Montgomery County, are permitted through the county's Department of Permitting Services. Because our office is in Gaithersburg, we work with both offices routinely and confirm which one governs your address before we file.
Whether it is a full custom build or a kitchen remodel, structural work and electrical, plumbing, and mechanical changes need permits and inspections, with plumbing under WSSC Water. On the new-construction side we also manage the engineering, grading, and utility approvals that a ground-up home requires, all under the same single contract.
Gaithersburg spans everything from mid-century homes in Olde Towne to newer construction in Kentlands and Lakelands, so cost tracks the individual home far more than the ZIP code. For a full custom build, land, site work, and utility connections drive the number as much as the house itself, and we lay all of it out before you commit.
Neighborhoods we serve in Gaithersburg
What we do in Gaithersburg
Services for Gaithersburg, MD homes
Kitchen Remodeling →
Custom layouts, cabinetry, and countertops, designed and built for how you cook and gather.
Bathroom Remodeling →
Spa-worthy primary baths to efficient guest baths, with tile, glass, and waterproof finishes.
Home Additions →
Add space and value, from bump-outs and second stories to full additions, engineered to code.
ADUs →
Turnkey accessory dwelling units for rental income or an in-law suite, design through build.
Why Gaithersburg, MD homeowners choose Excell
Built right, priced upfront.
Licensed, bonded & insured
Licensed in DC, Maryland, and Virginia, so your project is permitted and built to code.
One team, one contract
Design, permits, materials, and construction under a single fixed-price contract, with one project manager.
Transparent, upfront pricing
The number we quote is the number you pay, no surprise change orders, no hidden fees.
Gaithersburg FAQ
Questions from Gaithersburg, MD homeowners
Does Gaithersburg issue its own building permits?
Yes. Homes inside the City of Gaithersburg limits are permitted by the city, while North Potomac, parts of Germantown, and unincorporated areas go through Montgomery County's Department of Permitting Services. Our Gaithersburg office works with both, and we confirm which applies to your address.
Do you build new homes in Gaithersburg?
Yes. Alongside remodeling, we build custom homes from the ground up, handling design, engineering, Montgomery County or city permitting, site work, and construction under one fixed-price contract. If you are weighing building versus renovating, we will give you an honest read on which fits your lot and budget.
What areas around Gaithersburg do you serve?
Gaithersburg is our home base, and we regularly work throughout the surrounding area: Rockville, North Potomac, Germantown, and Montgomery Village, plus the wider Montgomery County market from Bethesda to Chevy Chase. Being local means our crews and project managers are minutes from most jobs.
How long does a Gaithersburg project take?
It depends on scope, from a few weeks of construction for a remodel to several months for a custom build, with design and permitting first. Because we know how both the city and county review plans, we minimize resubmissions and set a realistic schedule before work begins.

Start your Gaithersburg, MD project
Get a free estimate on your kitchen, bathroom, addition, or ADU. We'll come back with a clear plan and upfront pricing.







