9.79/10 from 800+ customers

Home Extensions Designed Around Modern Living

Q: Can I stay in the property during the work?

In many cases, yes.This depends on the scale of the project and how much of the existing home is affected during construction.

Q: What type of extension adds the most usable space?

That often depends on the layout of the property.For some homes, a rear extension creates the biggest improvement, while others benefit more from side returns, open-plan alterations or combined kitchen and dining extensions.

Q: Can extensions include large glazed doors and roof lanterns?

Yes.Many homeowners choose to include larger glazing features such as bifold doors, sliding doors or roof lanterns to increase natural light and improve the connection to the garden.

From kitchen extensions to larger structural alterations, Chatsworth Windows designs and builds home extensions that create brighter, more practical living spaces across Yorkshire and the North East.

Whether you are opening up the rear of the property, extending a kitchen or creating additional family space, the focus is always on making the home work better day to day.

Free Quotes
Transparent pricing
25+ years’ experience

Start Exploring Your Options

Every extension project is different.

Some homeowners are looking to create larger kitchens and dining spaces, while others want to improve layout, introduce more natural light or create a better connection between the house and garden.

In some homes, a relatively simple rear extension can completely change how the property feels day to day. In others, the project may involve larger structural alterations and a more significant redesign of the space.

Whether you already have ideas in mind or are still exploring what may be possible, we can help you better understand the options available for your property.

A Straightforward Process From Design to Completion

The Chatsworth Difference

Below are some of the reasons homeowners choose Chatsworth Windows for both small replacements and larger projects.

Finance Options Available

For some projects, spreading the cost can make things more manageable.

We offer a range of finance options across our products, including buy now, pay later and monthly repayment plans, subject to status. Availability depends on the type of work and the overall project value.

If finance is something you would like to explore, we can keep things simple, explain what may be available and help you decide whether it is the right option for your circumstances.

Find Out More

Check out our virtual tours

If you’d like to explore our work in more detail, our virtual tours allow you to step inside completed projects and showroom spaces online.

These interactive tours give a clearer sense of layout, proportions and finish than standard photography, helping you understand how different solutions look and feel once installed.

They’re particularly useful if you’re still deciding what might work for your own home.

Virtual Tours

Extensions Installed Across Yorkshire & The North East

We design and build home extensions across North Yorkshire, County Durham and surrounding areas, regularly completing projects in:

Northallerton
Darlington
Harrogate
Durham
York
Richmond
Ripon
Yarm

alongside many surrounding towns, villages and rural properties across the wider region.

Because every property is different, our projects range from smaller kitchen extensions through to larger open-plan transformations and glazed living spaces.

Thinking About Extending Your Home?

Whether you are exploring ideas, comparing options or ready to move forward with a project, we can help you better understand what may work for your property and layout.

Request a Free Quote View Recent Projects

FAQ'S - Home Extensions - LP

Will I see designs before the build starts?

Yes. During the design stage, we work through layouts, glazing options and the overall look of the extension before installation begins.

This helps homeowners better understand how the finished space may look and function within the property.

Do home extensions require planning permission?

Some projects fall within permitted development, while others require planning approval. Requirements vary depending on the size and type of extension.

How long does a home extension take?

Timescales vary depending on the complexity of the work, structural requirements and finishing details.

Smaller projects may move relatively quickly, while larger structural alterations naturally take longer.

Can you help with structural alterations?

Yes. Many extension projects involve opening up existing rooms or improving the flow between spaces.

The approach depends on the property layout and the scale of the changes involved.

Will the extension match the existing house?

In most cases, materials, colours and glazing are selected carefully to complement the existing property as closely as possible.

The goal is usually to make the extension feel naturally connected to the home rather than visually separate from it.

Can I stay in the property during the work?

In many cases, yes.

This depends on the scale of the project and how much of the existing home is affected during construction.

Are finance options available?

Finance may be available on qualifying projects, subject to status and lending criteria.

We can explain what options may be available depending on the type and value of the project.

What type of extension adds the most usable space?

That often depends on the layout of the property.

For some homes, a rear extension creates the biggest improvement, while others benefit more from side returns, open-plan alterations or combined kitchen and dining extensions.

Can extensions include large glazed doors and roof lanterns?

Yes.

Many homeowners choose to include larger glazing features such as bifold doors, sliding doors or roof lanterns to increase natural light and improve the connection to the garden.

Will the extension feel cold in winter or too hot in summer?

Modern glazing and insulation systems are designed to help maintain a more comfortable temperature throughout the year.

The exact performance depends on the design, glazing specification and amount of glass used within the project.

Do you only build modern extensions?

No.

Some homeowners prefer more contemporary glazed designs, while others want extensions that closely match the traditional character of the existing property.

Both approaches can work well when designed carefully.

What happens during the initial quotation visit?

The initial visit is usually focused on understanding the property, discussing ideas and exploring what may be possible within the available space and budget.

Measurements and site details are normally taken at this stage to help prepare recommendations and pricing.

Can you replace older conservatories with extensions or orangeries?

In many cases, yes.

Older conservatories are sometimes upgraded into more substantial living spaces using insulated roof systems, structural alterations or completely redesigned layouts.

How much does a home extension cost?

Costs vary significantly depending on the size of the extension, the amount of structural work involved, glazing choices and the level of finishing required.

Because every property is different, accurate pricing usually requires a site visit and survey.

Types of Home Extensions We Design & Build

Initial Consultation

Understanding the property, layout and what you want the additional space to achieve.

Design & Planning

Developing layouts, glazing options and structural details suited to the property.

Installation

Managed installation carried out by experienced teams with close attention to detail throughout.

Completion

Final finishing, project checks and handover once the space is ready to use.

Reviews & Reputation

Much of our work comes through recommendation.

Fred Davidson

Dec 2025

I've been in the building trade all my life , retired 12 years ago , I've just had two cottages windows replaced by chatsworth and I can't fault them , that's from sales to surveyor then the fitters who was quite unbelievable, what a first class job they made , apart from nice new windows you couldn't tell they had been there , and I would highly recommend them to anyone, thank you chatsworth team for a 1st class job

Linda Eastham

Jan 2025

Absolutely delighted with the work. Replaced garden room glass roof and new front door. Both teams of fitters were excellent. Showroom Staff very helpful and special thanks to Steve Oliver for all his help.

View Our Reviews

Proven Track Record

Our experience is reflected not just in customer feedback, but in the scale and consistency of the work we deliver.

Experience

Over 20,000 customers served over more than 20 years of trading, covering everything from individual replacements to complex, multi-stage residential projects.

Manufacturing

By manufacturing key product ranges in-house, we maintain direct control over quality, specifications and production efficiency.

Installation

All installations are carried out by our own experienced teams, with close attention paid to fit, finish and long-term usability.

Local Coverage

We supply and install across the North East, Yorkshire and surrounding areas, offering local knowledge and reliable aftercare.

Guarantees

Over 20,000 customers served over more than 20 years of trading, covering everything from individual replacements to complex, multi-stage residential projects.

Showroom

By manufacturing key product ranges in-house, we maintain direct control over quality, specifications and production efficiency.

Customer Service

All installations are carried out by our own experienced teams, with close attention paid to fit, finish and long-term usability.

Finance Options

We supply and install across the North East, Yorkshire and surrounding areas, offering local knowledge and reliable aftercare.

Rear Extensions

A popular option for increasing kitchen and dining space while improving the connection to the garden.

Kitchen Extensions

Designed to create more practical layouts, larger entertaining areas and brighter day-to-day living spaces.

Open Plan Alterations

Structural alterations designed to improve flow, light and usability throughout the home.

Orangery Extensions

Combining solid structure with glazing to create bright but more enclosed living areas.

Garden Room Extensions

Additional living spaces designed for relaxing, entertaining or quieter day-to-day use.

Contemporary Extensions

Modern glazed designs with cleaner lines, larger openings and more natural light.

Over

25000

Projects completed

Over

Years of experience

A modern

3000+

Sq foot showroom

Award Winners

Years in a row

Get to know us

Learn more about who we are, how we work and what sets us apart.
Discover the heritage, manufacturing and people behind Chatsworth Windows.

More about us

Recent Home Extension & Living Space Projects

Every property is different, and seeing completed projects often helps homeowners better understand what may work for their own space.

Explore some of our recent extensions, orangeries and conservatory transformations completed across Yorkshire and surrounding areas.

Conservatories

Conservatory near Northallerton

What was once a darker, dated conservatory has been completely refreshed into a brighter and far more contemporary living space near Northallerton.

Conservatories

Conservatory In Richmond

An elegant and classic conservatory holds a quiet surprise here in Richmond.