Monday to Friday, 7:00 am to 6:00 pm · Olney, MD MHIC #113016 · (240) 855-9789
Living room with refinished hardwood floors, a GHI Improvements project
GHI Improvements › Home remodeling in Montgomery County, MD
★★★★★ 4.8 on Google · 19 reviews

Remodeling contractor for Rockville, Silver Spring and Montgomery County, based ten minutes away in Olney, with the price in writing first.

You are in Rockville, Silver Spring, Wheaton or Gaithersburg and you want a contractor who is close enough to show up every day and licensed enough to pull the county permit. GHI is based in Olney. You get a walkthrough, a written price, and a crew that stays on your job until the Montgomery County inspector signs the final.

Rockville, Silver Spring, Wheaton, Aspen Hill and GaithersburgMontgomery County DPS permits and inspections handledMHIC licensed and insuredYour written estimate is free
Get your written estimateCall (240) 855-9789
Google reviews

What your neighbors in Montgomery County say

Every review below is a public Google review of GHI Improvements.

★★★★★

“We worked with Elio Portillo and GHI Improvements on a full renovation of our old Victorian home, including a bump-out addition, brand new kitchen, 3.5 bathrooms, new master suite, refinished floors, finished basement…”

Melissa Joy · Oct 2025
★★★★★

“Elio and his team did a fantastic job converting our first floor hallway into a bathroom! Everything was done according to code and state inspection standards, including electrical, plumbing, tile, and ventilation work.”

Michael Napoli · Aug 2025
★★★★★

“GHI Improvements has been working for me since 2019. They have worked on my bathroom, bedrooms, living room, and is now working on my kitchen. They also help you to get the best materials and good price for your money.”

Arlene Ruddock-Bremmer · Jun 2024

Read all 19 reviews on Google →

4.8★Google rating
2018LLC registered in Maryland
MHICLicensed home improvement
OlneyWhere your crew starts the day
What we build

What we build across Montgomery County

From 1940s Silver Spring Cape Cods to 1980s Gaithersburg colonials, the county's housing is varied, and so is our work. The projects we price most:

Kitchen remodeling

Layout changes, cabinets, counters, tile and lighting, from a refresh to a full gut.

Bathroom remodeling and additions

New full bathrooms carved out of hallways and closets, walk-in showers, master baths.

Basement finishing

Framing, egress, bathrooms, bars and storage so the lower level is real living space.

Home additions

Bump-outs, master suites and family rooms, including a full Victorian renovation with a bump-out addition that a client reviewed on Google.

Whole-home renovation

Floors, trim, paint, kitchen and bathrooms under one scope and one schedule.

Decks, patios and exterior

Decks, stone and concrete patios, roofing and siding as part of a larger project.

Local proof

Where we work in Montgomery County

Olney is home. From there: Rockville, North Bethesda, Silver Spring, Wheaton, Aspen Hill, Glenmont, Burtonsville, Gaithersburg, Germantown and Sandy Spring. Permits go through the Montgomery County Department of Permitting Services; we file them and schedule each inspection. Recent reviewed projects include a Victorian renovation with a bump-out addition, a hallway converted into a full bathroom, a bedroom addition and several finished basements.

White kitchen with island, a GHI project
Finished basement with bar, a GHI project
New tiled walk-in shower, a GHI project
Stone patio installation, a GHI project
Pricing

How pricing works

One written scope and price after the walkthrough, with the schedule and a milestone payment plan. We focus on remodels and additions from roughly $10,000 up. For a very small repair we will refer you to a handyman so you are not waiting on our crew.

How it works

Four steps, no surprises

1

Walkthrough

We visit, measure and listen to what you want from the space.

2

Written estimate

A clear scope and price in writing. No vague allowances.

3

Permits & build

GHI files with Montgomery County Department of Permitting Services and schedules the inspections. One crew, one point of contact.

4

Final walkthrough

We finish the punch list, clean up and hand over a space that passes inspection.

Free estimate

Tell us about your Montgomery County project. You get a written estimate.

Three quick questions, then a call back to set your walkthrough, usually the same business day.

  • Best fit: remodels and additions over roughly $10,000
  • Your estimate is in writing, so you can compare it
  • Permits and inspections handled by GHI
Step 1 of 3About 30 seconds

What are you planning?

When do you want to start?

Where should we call you?

By sending you agree to be contacted by GHI Improvements about your project. No spam, no lists.

✓

Thanks. Expect a call back shortly.

In a hurry? (240) 855-9789

Good to know

Questions from Montgomery County homeowners

Where exactly in Montgomery County do you work?

Olney first, then Rockville, Silver Spring, Wheaton, Aspen Hill, Gaithersburg, Germantown, Burtonsville and Sandy Spring. Most of the county is within 30 minutes of our shop.

Do you pull Montgomery County permits?

Yes. Additions, bathrooms, basements and structural work need a DPS permit. We file, schedule the inspections and hand you the final approval. Several reviews mention passing inspection.

How soon can you start?

After the walkthrough and your approval of the written estimate, we schedule a start date and put it in the contract. Lead time varies by season; we tell you the real date, not a hopeful one.

Can I see your work in person?

Our Google profile has more than 200 job-site photos, and every photo on this site is from a GHI project.

Do you work in Washington, DC?

Our license is a Maryland MHIC license and our permits experience is in Maryland counties. Call us about a DC project and we will tell you plainly whether we can take it.

Are you insured?

Yes. MHIC licensees must carry liability insurance, and your project is covered by the Maryland Home Improvement Guaranty Fund.

📞 Call (240) 855-9789