Contractors & Construction Managers Since 2012.


Frequently Asked Questions ?

Yes, we can handle the entire conversion (including obtaining planning permission and building regulations)
This depends on your property and what you intend to do, but we will be able to tell you if we visit your site to give you a free quotation.
Only for gas and electrical items. All our contractors have been working closely with us for years. All work is included in our quality guarantee.
Designated land means conservation areas, national parks and the broads, World Heritage sites and areas of outstanding natural beauty. Houses that are built on designated land are not allowed to have roof extensions.
Additional roof space such as dormer windows must not exceed the following allowances:
• 40 cubic metres for terraced houses.
• 50 cubic metres for detached and semi-detached houses.
Yes, no part of the loft conversion can be higher than the highest part of the existing roof.
If the principal elevation of your house fronts a highway, an extension that exceeds the plane of the existing roof slope is not allowed.
No. Balconies, veranda’s and raised platforms are not allowed in the planning regulations.
The materials you use to construct the loft conversion must be in keeping with the materials used to originally build the house.
Each project differs and it really does depend on your property and the specification you choose. Please call us on 0207 97 11110 to arrange an appointment for a FREE QUOTATION.
Yes, we do have some evening and weekend appointments available. Please call us on +44 (207) 971-1110 to arrange an appointment.
You don’t need plans to begin the process with us, we work with chartered architects and so can arrange for the plans to be drawn, however, we are happy to work to your plans if you have already had them drawn up.
We specialise in loft conversions in London, Surrey and the South East. Please call us on +44 (207) 971-1110 to see if we cover your area.
You would only need a party wall agreement if you live in a semidetached or terraced house and therefore have an adjoining wall between you & your neighbor. If you sign with us we can provide a party wall letter for your neighbor to sign. If your neighbor doesn’t agree you would have to appoint a Party Wall.
We usually complete the work to a chipboard finish, however we can arrange for carpets to be fitted at an additional cost.
No, we ask clients to supply tiles, grout and adhesive and we tile the room. We do have preferred suppliers and so we can get a trade discount.
No we ask clients to choose and supply the suite they require. We do have preferred suppliers and so we can get a trade discount.
We usually complete the walls to a plaster finish, however, we can arrange for decorating to done at an additional cost.
IV Construction loft Conversions guarantees all work for 10 years under an insurance backed scheme as well as deposit protection.



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