Bay State Window Experts, Windows, Doors, Siding, in MA

Chamber of Commerce Contractor.  Lifetime Workmanship Warranty.

Our Windows & Doors Showroom

Bay State Window Experts is a Harvey replacement windows, doors, and vinyl siding contractor serving Metro West MA and Central Massachusetts.  We do things different than other companies because we provide cost estimates up front BEFORE you decide if you want to schedule an in-home estimate to samples and discuss your project in detail.  *** Call us or fill out the form below and we will email you our price list and a cost estimate for your project as the first step of the process.

Replacement Windows

Exterior Doors

Vinyl Siding


Bay State Window Experts

Harvey Window are the BEST selling windows in MA.  They have the BEST combination of quality + an affordable price.


* 30+ Years Experience.

* Replacement Windows, Doors, Vinyl Siding.

* Easy Online Cost Estimates.

* Lifetime Workmanship Warranty.

Harvey Windows Contractor in MA


Winter Sale - We'll Beat Any Company on TV by $500

We are pretty sure we already have better prices than any window company you see on TV.  Now we guarantee it. If any company advertising on TV presents you with an itemized written price quote for 10 windows or more that is less than our quote, show us and we will beat it by $500 - Guaranteed. Must be for similar quality windows (vinyl vs vinyl or wood vs wood) and similar options.  Get an estimate from us then compare.  *** Best Price Offer Ends February 28, 2026.


#1 Selling Windows in MA $795 Installed

Harvey Classic series white windows are the choice of 90% of our customers but you have other options.


* Harvey Slimline Windows

* Harvey Classic Windows *** #1 Seller

* Harvey Tribute Windows

* Harvey Majesty Wood Windows

* Grids Between the Glass

* Half Screens or Full Screens

* Several Color Options.


*** Fill out the form below and we will email our price list.


Harvey Entry Doors & Sliding Patio Doors

Your front door creates a first impression when people visit your home.  There are MANY styles, glass options, colors, and hardware options to choose from in a wide range of prices.


High quality energy efficient sliding patio doors.  You have the option of getting a door with internal blinds.


* Entry Doors - About $4,000 Installed - MANY Options.

* Factory Painting of Entry Doors - $600.

* 6 Foot Sliding Patio Doors - $3,950 Installed.


An estimator can provide a brochure and discuss options.


Quality Vinyl Siding Installation

When installing new siding on your home, you can custom create a brand new look.  You can mix and match styles, textures, and colors.  You can use different types of siding on the front of your house than you do on the sides or back of your home.  You can be as creative as you want.


* Clapboard Style Vinyl Siding.

* Cedar Shake Style Vinyl Siding.


An estimator can bring siding samples and colors to your home for you to see and discuss your options.


Lifetime Warranty on Our Workmanship

We hire only the best windows, doors, and vinyl siding installers to do the job right.  Our installers are so good that we back our original workmanship with a lifetime warranty.  The warranties on the products are backed by the manufacturers.  For as long as you own your home, we stand behind our work.


We Are a Member of the Chamber of Commerce.  We Have Connections.

Members of the Chamber of Commerce hold each other to a high standard of business ethics and professionalism. We have connections to many other home services providers.  If you need any other services that we don't offer, ask us.  We may know someone that can help you and we will connect you with them. We know these people personally.  *** Visit our About Us page to see the connections other home services connections we have.


0% Financing is Available

Bay State Window Experts has partnered with Synchrony Bank to offer our customers financing options to make any size home improvement project affordable.


* 0% Interest For 18 Months.

* 7.99% Interest For 60 Months.


 We Also Accept All Major Credit Cards.


You Can Start By Getting a Price Estimate Online - Easy!

My name is Mike Luke, the owner.  I have 30+ years in the home improvement business.  We know that 90% of companies force you to schedule an appointment with a sales person and listen to a boring sales pitch just to get price information.  We do things different.  We provide price information upfront BEFORE you decide if you would like to schedule an appointment to see samples and review your project in detail.


Call us for an in home estimate - Or start by getting a price estimate by email.


1.)  Fill out the form and we will email you our windows price list and a price estimate by the next business day. 


2.)  You can reply at your convenience with any questions or to schedule an in-home estimate to see samples and discuss your project in detail.


Our Windows & Doors Showroom

Bay State Window Experts

108 Milk Street (Route 135)

Westborough, MA 01581


Showroom Hours (by appointment):

Monday to Friday 8:30 AM to 5:00 PM


*** Serving Metro West MA & Central MA


Phone:  774-573-1063


We will bring samples to your home.



* Minimum job size is 5 windows or 1 door

Contact Us


We Support Local Food Banks - Donate $100 & Get $100 Off

If you order new windows, doors, or siding with us and make a $100 donation to a food charity, we will give a matching donation of $100 to that same charity bringing the total donation to $200.  *** As a thank you, we will also take $100 off your project.


We'll Bring Samples to Your Home