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"Outstanding service from initial consultation to final installation. Our new sash windows have transformed our Chelmsford home's appearance while significantly improving warmth and comfort."
Charlotte & Robert Wilson
Chelmsford
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Chelmsford, Essex Sash Window Specialists
Sash Windows in Chelmsford, Essex
Transform your Chelmsford home with draught-free, secure sash windows that combine authentic period style with modern performance, cutting heating costs by up to 40%
⭐⭐⭐⭐⭐Rated 4.9/5 by Chelmsford customers
10 Year Guarantee
Conservation Approved
Sash Windows for Chelmsford, Essex Homes
Local Specialists in Period Window Design
Our premium sash windows are expertly designed for Chelmsford properties, combining authentic period elegance with cutting-edge performance features that perfectly complement the architectural heritage found throughout Chelmsford, Essex.
With over 25 years of experience working with Mix of Georgian, Victorian, and contemporary architecture., our certified sash window specialists understand the unique requirements of homes in Chelmsford. We're fully approved for City Centre Conservation Area protects historic core.
Every sash window installation in Chelmsford is backed by our comprehensive 35-year guarantee and installed by our own local, fully-qualified installation teams—never subcontractors—ensuring consistent, premium quality results.
Authentic Period Aesthetics
Perfect replication of traditional sash windows for Chelmsford homes
Local Chelmsford Expertise
Tailored solutions for Chelmsford, Essex's unique property styles
Perfect for Conservation Areas
Approved designs for Chelmsford's protected neighborhoods
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Bespoke sash windows for Chelmsford
Tailored to your property's unique character
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Why Choose Harrington for Your Chelmsford Sash Windows
Our Expertise & Credentials
Industry Certified
Our Chelmsford installations are backed by FENSA certification, Glass and Glazing Federation membership, National Trading Standards approval, and Installsure 10-Year insurance-backed guarantees.
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Energy Performance
Our sash windows achieve A+ energy ratings - the highest available for any window product. This high-performance glazing can reduce heating costs by up to 40% for Chelmsford homeowners.
A+ Rated Windows
25+ Years Experience
Our master craftsmen have been installing sash windows in Chelmsford for over 25 years, with specific experience in local conservation areas and period properties.
Excellent
Trustpilot
TrustpilotLocal Chelmsford Knowledge
Harrington Windows is the most highly rated sash window specialist in Chelmsford, Essex, with unmatched knowledge of local architectural styles and conservation requirements. Our team includes Chelmsford residents who understand the specific needs of properties in this area.
Conservation area approved designs
Dedicated Chelmsford installation team
Award-winning customer service
Sash Window Details for Chelmsford, Essex Properties
Crafted With Precision for Local Homes
Authentic Design Features for Chelmsford Homes
Our sash windows are meticulously designed to replicate the traditional timber windows found in Chelmsford, Essex while incorporating modern materials and techniques for superior performance.
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Slim 35mm Midrail
Elegant, slim profile that maximizes glass area while maintaining authentic proportions.
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Mechanical Butt Joints
Traditional joinery techniques that create authentic corner details without visible welding.
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Seamless Sash Horns
Optional decorative sash horns that replicate traditional timber window details.
Traditional Styling
Crafted for Chelmsford, Essex homes
Sash Windows Gallery in Chelmsford, Essex
Recent Chelmsford Sash Window Installations
Browse our portfolio of recently completed sash window installations in Chelmsford and surrounding areas. Each project showcases our commitment to quality craftsmanship and attention to detail for local properties.
Premium timber sash windows installed in Chelmsford home
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A-rated energy efficient sash windows for Chelmsford, Essex property
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Traditional box sash windows enhancing Chelmsford period home
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Modern sash windows fitted in Chelmsford, Essex town house
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Georgian style sash windows for Chelmsford conservation property
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High-security sash windows with heritage appeal in Chelmsford, Essex
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Authentic sliding sash windows in Chelmsford Victorian home
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Double-glazed sash windows for Chelmsford, Essex period property
Frequently Asked Questions About Chelmsford Sash Windows
Everything you need to know
Find answers to common questions about sash windows installation and replacement in Chelmsford, Essex
Still have questions?
Our local Chelmsford window experts are here to help you with any specific questions or requirements about sash windows for your property.
Chelmsford Customer Testimonials
Hear from our satisfied clients
"The quality of Harrington's sash windows is exceptional. They've perfectly matched our period property's style while providing modern insulation. Couldn't be happier with the results and the professional installation."
William Thompson
Chelmsford, Essex
"After researching several companies, we chose Harrington Windows for our conservation area property in Chelmsford. Their knowledge of local requirements and attention to detail was outstanding. The windows look beautiful."
Victoria & Jonathan Harris
Chelmsford
4.9 out of 5
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4.8 out of 5
No obligation • Free consultation
Sash Window Specialists in Chelmsford, Essex
Find Us in Chelmsford
Our sash window installation services cover all areas in and around Chelmsford. We provide free consultations and on-site measurements throughout Chelmsford, Essex.
Service Area
Chelmsford, Essex and surrounding areas
Hours
Mon-Fri: 9am-5pm
Sat: 10am-4pm
Areas We Serve in Essex
Our Sash Window Services Near Chelmsford
We provide our premium sash window services throughout Essex, including Chelmsford and the following nearby areas:
BraintreeEssexSudburyEssexBrentwoodCM14BillericayEssexEppingCM16HalsteadEssexGreat DunmowEssexLittle HallingburyEssexGreat ChesterfordEssexFinchingfieldEssexThaxtedEssexFelstedEssexWoodford GreenEssexBuckhurst HillEssexSaffron WaldenCB10ChigwellEssexLoughtonEssexShenfieldEssexIngatestoneEssexDedhamEssexFrinton-on-SeaEssexThorpe BayEssexWestcliff-on-SeaEssex
Not seeing your area?
We serve many more locations in and around Essex. Contact us to check if we cover your specific area.
Ready to Transform Your Chelmsford Home?
Get started with a free consultation and quote. Our Chelmsford experts are ready to help you find the perfect sash windows for your home.
No-obligation quotes
Free Chelmsford home consultation
10 Year Guarantee