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Window Doctor

5.0(
11
)
6+ Room New Window Service,

About us

Window Doctor installs custom energy-efficient vinyl, fiberglass, and wood windows — including double-hung, casement, picture, 2-lite, and 3-lite sliders, bay, bow, and garden styles — precision-measured to 1/8 inch for a perfect fit. Our factory-trained installers use premium insulation and OSI Quad Max caulk for lasting, weather-tight performance in Maryland’s four-season climate. Most projects are completed within a single day. We also provide doors, siding, and gutter replacements. Choose from 21 beautiful window models — all custom-made for your home. Every estimate includes a one-year price quote, factory-direct pricing, and if you find a better written quote, we’ll match it and give you $200 for your troubles. Licensed and insured, MHIC #164611. Call today to schedule your free in-home consultation and see the Window Doctor difference!

Business highlights

Emergency services offered

Amenities

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
5.011 Reviews
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Number of StarsImage of DistributionNumber of Ratings
5
100%
4
0%
3
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2
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1
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Showing 1-11 of 11 reviews
Jake W.
Apr 2026
5.0
6+ Room New Window Service
$28,826
I recently had my windows replaced and I?m really happy with how everything turned out. The process was straightforward and everything was explained clearly without it feeling like a sales pitch. Installation went smoothly. The crew showed up on time, worked efficiently, and cleaned everything up before leaving. The biggest thing I?ve noticed is how much more comfortable the house feels. There are no more drafts and everything feels tighter and quieter. The windows also made a noticeable difference in how the house looks from both inside and out. Overall a really good experience.
Frieda R.
Feb 2026
5.0
$5,000
We had our windows replaced before selling our home, and it was one of the best decisions we made. They were able to repair the rotted wood around the windows, which increased the value of our home. We actually made money from the upgrade! The turnaround time was fast, and the whole process was smooth. I would definitely recommend them if you?re looking to replace your windows before selling.
Response from Window Doctor
"Thank you so much for trusting us with your home. We?re glad we could repair the rotted wood and help increase your home?s value before selling. Fast turnaround and a smooth process are exactly what we aim for. We truly appreciate the recommendation and wish you the best in your next chapter."
Charlie W.
Oct 2025
5.0
6+ Room New Window Service
$12,000
Window Doctor did a great job on my new windows. Fair price, quick turnaround, and no issues with the install. Windows look awesome?would definitely use them again.
David B.
Oct 2025
5.0
6+ Room New Window Service
$6,200
5 star We just had 9 Vero Windows installed and we couldn?t be more impressed. They are incredibly sturdy yet so easy to open and close, which has been a big help for my grandmother. The installation was smooth, the quality is excellent, and the difference is noticeable right away. Highly recommend!
Sharon S.
Oct 2025
5.0
6+ Room New Window Service
$10,000
We just had 12 windows replaced and couldn?t be happier with the results! From start to finish, the entire process was smooth and professional. The installers arrived on time, worked efficiently, and cleaned up everything! The new windows look fantastic and we noticed how much more quieter the house feels. I highly recommend Window Doctor. Everything was excellent!
Beverly H.
Sep 2025
5.0
$3,000
They replaced my soffit Their work was amazing! Looking to in future to hire for siding replacement next year
Elizabeth L.
Sep 2025
5.0
Google Review
Excellent service- fast installation did not disrupt my daily activities. Highly recommend!
Ellie G.
Sep 2025
5.0
Google Review
Love my new windows and sliding glass doors! The crew was super nice and helpful, and financing made it easy to get it done. Looks great!
Karen S.
Sep 2025
5.0
Google Review
Easy presentation, didn't feel like I was pushed- they gave me options to choose from, and I was able to make the decision that was best for my house and my budget. Great team and great service. Thank you, Window Doctor.
Nicholas L.
Sep 2025
5.0
Google Review
John and his team are amazing. I can't say enough good things about him and his professionalism. His quality of work John is one of a kind just so everyone know is just in case it's a two window minimum so if you're looking for one window to be fixed or repaired or to be replaced John's not your guy but anything else you need any more than one window call John I promise you you won't be disappointed.
Robert V.
Sep 2025
5.0
Google Review
What stood out to me about Window Doctor was the value. They gave me a price that was locked in for a year, and they even matched a competitor’s quote. The installation was precise, and I have peace of mind knowing the windows are backed by a lifetime warranty

Licensing

Insured
Licensed*

Trade License Number

164611

Trade License Locale

MD

Trade License Expiration

07/24/2027

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Window Doctor is currently rated 5.0 overall out of 5.

Monday: 7:00 AM - 5:00 PM Tuesday: 7:00 AM - 5:00 PM Wednesday: 7:00 AM - 5:00 PM Thursday: 7:00 AM - 5:00 PM Friday: 7:00 AM - 5:00 PM Saturday: 7:00 AM - 3:00 PM Sunday: Closed

Window Doctor accepts the following forms of payment: CreditCard

Yes, Window Doctor offers free project estimates.

No, Window Doctor does not offer eco-friendly accreditations.

Yes, Window Doctor offers emergency services.

Yes, Window Doctor offers warranties.