Berkhamsted Sash Window Specialists
Sash Windows Berkhamsted – Expertly Manufactured, Professionally Installed
We’re a family-run timber sash window company with over 65 years of combined experience. Whether you’re restoring a period home or replacing draughty single-glazed windows, we offer a full-service solution. From design and manufacture to planning permission and installation, we’ve helped homeowners throughout Berkhamsted navigate conservation rules and improve comfort and energy efficiency – without compromising on heritage appearance.
Replacement Sash Windows in Hertfordshire - Why Homeowners Choose Us
- Expert support with planning permission in conservation and heritage areas.
- Beautifully crafted bespoke timber sash windows designed to match your property.
- Accoya timber windows with industry-leading 50-year guarantees.
- Choice of double glazed or ultra-thin vacuum glazed units suitable for conservation areas.
- Fully managed council approval service.
- Part L compliant for energy efficiency, with options for PAS 24:2022 certification (Part Q for new builds).
- Heritage-style designs that maintain architectural authenticity.
- Modern security features discreetly built in.
- Tailored sash window installation for period homes in Berkhamsted and beyond.
We take care of the red tape so you don’t have to – from CAD drawings to local authority approval.
Traditional Craftsmanship with Modern Performance
For homes within conservation areas or Article 4 Direction in Berkhamsted, we know maintaining the original character is essential. Our sash windows Berkhamsted range is carefully designed to replicate existing profiles, glazing bar patterns, and proportions, while incorporating modern thermal performance.
If your property falls under Article 4 Direction, we can install sash windows with advanced vacuum glazing. This innovative option provides the appearance of traditional single glazing but offers far superior insulation, helping you meet modern energy standards without compromising on aesthetics.
Our team has successfully supported planning applications across Hertfordshire and the wider Home Counties. We work closely with local councils to ensure compliance while delivering beautiful, long-lasting results.
Conservation Area Planning Support in Berkhamsted - How We Help
We specialise in replacement sash windows in Berkhamsted and across Hertfordshire, including conservation area and Article 4 projects. If approval is needed, we can guide you through the process and provide the supporting information councils typically expect, such as:
Measured details and drawings (existing vs proposed)
Joinery profiles and glazing bar layout
Timber specification and finish details
Heritage-appropriate glazing options where suitable (including vacuum glazing where it helps maintain a traditional look)
A short planning statement focused on external appearance and like-for-like detailing, where applicable.
If you want to check the rules or boundary yourself, these Dacorum Borough Council resources are a solid starting point:
Many replacements are straightforward when the new windows closely match the originals. The usual problems come from visible changes – chunky sections, incorrect glazing patterns, modern-looking detailing, or changes to openings. Our job is to keep your project compliant and keep it looking right – without turning it into a planning headache.
Download the Berkhamsted conservation area map (PDF):
Download the Berkhamsted conservation area Appraisal (PDF):
Many replacements are straightforward when the new windows closely match the originals. The usual problems come from visible changes – chunky sections, incorrect glazing patterns, modern-looking detailing, or changes to openings. Our job is to keep your project compliant and keep it looking right – without turning it into a planning headache.
Berkhamsted Conservation Area Windows and Doors
If your property is in the Berkhamsted Conservation Area, replacement windows and doors may be more tightly controlled than elsewhere. The council’s main concern is the external appearance from the street – proportions, glazing pattern, frame sections, and traditional details. Requirements depend on whether the property is within the conservation boundary, whether it is listed, and whether an Article 4 Direction applies. Where consent is needed, like-for-like designs with correct detailing are typically the safest route.
A conservation area is a designated area where the local authority protects the look and character of the streetscape. In practice, this means changes to visible exterior features – including windows and doors – can be more closely managed, particularly where original joinery is part of what makes the street look “right”.
In Berkhamsted, what you need to do usually depends on three things:
Whether your property is within the conservation area boundary
Whether it is listed (listed buildings often need Listed Building Consent for window and door changes)
Whether an Article 4 Direction applies (this can remove permitted development rights for items like windows and doors)
Where permission is required, the decision is usually driven by appearance and detail – glazing bar layout, sash proportions, timber sections, horn detailing, and how closely the proposal matches the existing character.
Article 4 Direction Planning Permission in Berkhamsted - Made Easy
If your property is in a Berkhamsted Article 4 Direction conservation area, replacing your sash windows requires formal planning consent.
We’ve worked directly with Dacorum Borough Council and other authorities to get approvals throughout Berkhamsted. From heritage drawings to application submission, we manage the entire process on your behalf – ensuring it’s smooth, fully compliant, and stress-free.
Timber & Glazing Options
Our sash windows combine traditional aesthetics with modern performance. We offer:
Accoya timber with 50-year rot-free guarantee
Sapele or Meranti hardwood options
Slim-profile double glazing or ultra-thin vacuum glazing
Teknos factory-finished 4-coat microporous paint system
Dual-colour and custom colour matching available
Need help choosing the right glazing or timber?
View our wooden sliding sash windows up close
To discuss your requirements and obtain a full quotation, please call 01279 456670 or contact us via our enquiry form.
More Than Just Timber Windows
While we’re known for our sash windows, we also manufacture and install bespoke timber doors.
Whether you’re looking for a period-accurate front door for a Victorian terrace or a durable timber back door with added security, we offer solutions tailored to the character of your home.
Every door is made-to-measure, expertly finished, and built to last – all made with the same care as our windows.
Your Trusted Sash Window Company in Berkhamsted
With over 65 years of combined family experience in timber joinery, Sash Window Shop is proud to deliver exceptional service and craftsmanship.
We’re committed to providing Berkhamsted homeowners with sash windows that combine architectural authenticity with modern energy and security standards.
If you’re considering replacing your windows or doors, get in touch today. We’ll guide you through every step – from initial advice to final installation.
Our quality & service are very important to us…
What Our Customers Say
We’re proud to be rated Excellent on Trustpilot, with genuine feedback from our clients who have chosen our timber windows and doors windows.
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