Replacement & installation only — no standalone repairs or staining.

(410) 336-1945(443) 603-7991(443) 280-3070

Free, no-pressure estimates

Request your free estimate

Tell us about your project and we'll call you back within 24 hours to arrange a consultation and measurement. Written estimates usually follow within 2 to 3 business days, once we have current pricing from our suppliers.

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(443) 603-7991 (443) 280-3070

Replacement & installation only — no standalone repairs or staining. Repair and service work is provided only for windows and doors we installed.

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The owner's background

Tomasz Bilich is the owner-operator of the business and has over 10 years' experience in the residential window and door industry. He learned about windows and doors working in the factory at a local window manufacturer 25 years ago — from production, through post-installation service, and eventually the installation process itself. That background is what lets us offer quality workmanship, extensive product knowledge and real help designing your project.

One-on-one personalized customer care

What makes B.T. Window & Doors unique is that you get one-on-one personalized service. We are not a large corporation. No matter how advanced the glazing and framing materials are, or how beautiful a new door is, performance ultimately depends on the quality of installation — poor installation contributes to air leakage, heat loss, condensation and water leakage. We're here to save you time and money, and to give you peace of mind that the job was done properly.

Payment and financing

We accept cash, checks, debit and all major credit cards. Need financing? We accept GreenSky Financing Solutions, subject to credit approval.

Licensed and bonded — MHIC #131411 · PA #189243.

About glass repair

We install windows and doors — we do not offer general glass repair or glass maintenance. If a unit we installed develops a fault, that is covered by its warranty and we will put it right. For anything else, a local glazier is the right call.