Book an appointment

Book an
Appointment

Finance options

Design Your
Dream Door

Request a callback

Request a
Call Back

Christmas opening hours | Closed from Friday 21st December | Open from Wednesday 2nd January

Do you need a foundation for a conservatory?

White uPVC conservatory with a grey tiled roofLike other new extensions, conservatories must have foundations in place. Foundations are necessary for transmitting the building’s weight safely to the ground. Without adequate foundations, the structural integrity of a conservatory is severely affected. There is no minimum depth for conservatory foundations, however their depth and the type of foundation tends to vary as a result of numerous factors.

Nearby trees

Trees affect foundations by drawing moisture away from the soil. Taking moisture away from the soil causes it to shrink, which subsequently affects the strength of the foundations. The size and type of the tree will affect how much moisture is removed from the ground.

Suitability of the soil

Different soils are able to withstand different weights, plus different soils are affected by environmental factors more than others. For instance:

ChalkP-Shaped timber conservatory

Chalk drains water away well, meaning nearby trees affect it’s quality only marginally.

Clay

Clay shrinks when drying and retains a lot of water. Nearby trees can cause significant shrinkage in clay, resulting in structural problems for a conservatory. Typically, changes to clay mainly occur up to a depth of about 0.75m, therefore foundations should be built deeper to compensate.

Drains

If a drain or sewer is covered by the downward footprint of a conservatory’s foundations, there is a chance it could crack. Therefore, foundations should be dug at least the same depth as the bottom of the deepest part of the drain or sewer.

Interior of a rosewood uPVC conservatory

Undisturbed ground

Ground which hasn’t been built on must be found before foundations are laid, which usually takes a dig of about 1m. Although, this figure tends to vary in areas where drains have been laid.

Differences between uPVC, timber and aluminium conservatories

As there are differences in weight between aluminium, timber and uPVC conservatories of the same size, the depth of their foundations will vary accordingly.

Types of conservatory foundation

These are some common types of conservatory foundations. Which type is used will depend upon the aforementioned factors.

Deep strip

The most common type of conservatory foundations, the width varies depending on the type of soil in use. Generally, the minimum width is 450mm and the minimum depth of concrete should be 225mm.

Trench fill

This method uses more concrete than deep strip, however labour times are reduced. The amount of concrete used is more than 500mm in depth.

Piled

This method is ideal for use when considerable depth is required to find undisturbed ground. Piles are dug into the ground to support a reinforced beam that spans from pile to pile, supporting the conservatory structure.

Raft

This can be a good alternative to trench fill and deep strip, if neither can be used. Raft foundations are characterised by the use of reinforced concrete slabs placed underneath the structure to support it.

Are you considering a conservatory for your property? Get in touch with Lifestyle Windows today by phoning 0800 783 6502 or send us an online message. Lifestyle installs high quality conservatories constructed from uPVC, aluminium and timber.

Our customers' feedback is important to us!

We are proud to have received over 500 customer reviews on independent platforms

5/5

We would like to thank Chris and his team for their professionalism before and during the job

I would have no hesitation in recommending Lifestyle Windows and Conservatories to anyone looking for home improvements.

Reviews

5/5

Fabulous, professional service

Fabulous service from start to finish. I highly recommend Life Style, for their quality products and professional and helpful staff.

Yell

10/10

Replacement UPVC window

Quick and efficient, polite and friendly, good product.

Checkatrade

5/5

Brilliant local company, very professional

Highly recommended.

Facebook

5/5

Lifestyle Windows Ilkeston

…the finished job was amazing even better than I expected I am over the moon.. I definitely made the right choice employing lifestyle too do the work.

Which

5/5

We ordered French doors with side windows and another window to match from the residence 7 range

…we like the company and we like the product, we won’t hesitate to use Lifestyle windows again.

Reviews

10/10

Installation of window and door all double glazed units

Fitters worked very hard. Friendly and courteous, clean and tidy. Great team in the office. Recommended to anyone.

Checkatrade

10/10

Replacement of old existing conservatory with new and recoating unview old base

Professional and carried out to a very good standard working in difficult and restricted access conditions.

Checkatrade

5/5

Lifestyle windows, Lifestyle windows is a must

I would always recommend lifestyle windows to every one, very friendly, hassle free, reliable, trustworthy and do an amazing job.

Yell

5/5

Absolutely love Lifestyle

Had a conservatory a few years back, and now just had our windows fitted and they are and look amazing! Always good advice given by Chris, and a brill work force. wouldn’t use any other company, definitely highly recommended!

Facebook

5/5

A friend suggested we try Lifestyle

What a difference, friendly helpful staff, not pushy at all, who looked after us. The price and product quality were just what we were looking for.

Google

5/5

We chose Lifestyle to have our 15 year old conservatory replaced with a Livinroof

From start to finish we were very impressed with the professionalism of Chris and all his team from the fitters, plasterer and office staff.

Reviews

10/10

Replaced 8 windows, French doors and main door composited

Excellent service and workmanship. Very well made product. Professional and friendly company. No pressure salesmanship.

Checkatrade

5/5

Very impressed by this company

The price was very reasonable, and the quality of their products was very impressive… During the actual fitting period, they were very diligent, and the workmanship was superb. Would definitely recommend them.

Google

5/5

Fantastic job well done

Very good overall experience. Fitters worked very hard and were friendly. They left my place clean and tidy would recommend to anyone.

Which

10/10

1 patio door and 2 std doors fitted

No fuss, no mess good price, good quality products and workmanship. A pleasure doing business with them.

Checkatrade

5/5

Looking to make our conservatory usable in the winter and not like a greenhouse in the summer

…process was managed very professionally by Chris and every single trades person were polite, tidy and did a first rate job.

Google

5/5

Could not fault them

3 doors all fitted the same say. No fuss, no mess, good price. Good quality product and workmanship and excellent customer service. A pleasure doing business with them.

Which

5/5

Super service

Efficient, polite and professional. Good quality product.

Which

View more reviews

reviews.co.uk logoWhich? Trusted TraderGoogleFacebookCheckatradeyell logo

Proudly serving the East Midlands

We're a trusted local double glazing company in the East Midlands! Based centrally in Ilkeston, we serve across vast swathes of Nottinghamshire, Derbyshire and Leicestershire.

GET IN CONTACT