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Home Improvement Services in Maryland

Serving Baltimore County and Harford County

Since 1975, K&A1 has been Maryland's trusted choice for windows, sunrooms, kitchens, bathrooms, and more.

Get a Free Quote

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Licensed in MD

Fully licensed and insured for your protection

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Hundreds of Local Installs

Trusted by Maryland homeowners since 1975

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Top-Rated in Maryland

Our Services

Professional home improvement services for Maryland homeowners

Windows & Doors

Energy-efficient window and door installation for Maryland homes

Sunrooms & Awnings

Custom sunrooms and awnings to enhance your outdoor living

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Kitchen Remodeling

Complete kitchen renovations that increase home value

Bathroom Remodeling

Modern bathroom updates from tub conversions to full remodels

Areas We Serve

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We serve Baltimore County and Harford County

Baltimore County

Towson

Timonium

Perry Hall

White Marsh

Dundalk

Essex

Middle River

Owings Mills

Catonsville

Pikesville

Reisterstown

Cockeysville

Hunt Valley

Harford County

Bel Air

Abingdon

Forest Hill

Fallston

Jarrettsville

Aberdeen

Havre de Grace

Edgewood

Joppa

Churchville

Don't see your city? Give us a call!

What Maryland Homeowners Say

Real reviews from real projects

⭐⭐⭐⭐⭐

K&A1 built us a beautiful sunroom. The attention to detail was incredible and they finished on time.


Sarah M.

Bel Air, MD

Sunroom Installation

⭐⭐⭐⭐⭐

Replaced all our windows. The energy savings are noticeable and the crew was professional throughout.


John D.

Towson, MD

Window Replacement

⭐⭐⭐⭐⭐

Our kitchen looks amazing! They handled everything from permits to cleanup. Highly recommend. 


Lisa P.

Aberdeen, MD

Kitchen Remodel

⭐⭐⭐⭐⭐


cheryl k.

Frequently Asked Questions

Quick answers about working with us

Do you work in Baltimore County and Harford County?

Yes, we serve all of Baltimore County and Harford County including Bel Air, Towson, Aberdeen, and surrounding areas.

How long does installation take in Maryland?

Most projects take 1-3 weeks depending on scope. We'll give you an exact timeline during your free consultation.

Do you handle permits in Baltimore County?

Absolutely. We handle all necessary permits and inspections required in Baltimore and Harford County.

What affects cost in Maryland?

Project size, materials chosen, and site accessibility. We provide detailed, transparent quotes with no hidden fees.

Ready to Get Started?

Free consultation. No obligation. Honest pricing.

Serving Baltimore County and Harford County