Loft Conversion in Grantham

Compare Loft Conversion Prices in Grantham

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Loft conversion companies in Grantham

Attempting to find loft space alteration consultants in Grantham? Our loft conversion renovators in Grantham can provide you the best quotes to have a attic room modified in your house.

The installation of a loft area extension in your house can be achieved promptly, enabling you to make full use of the converted living space and start benefitting from an extra room. The loft area conversion will be carried out by a vetted, approved company and as soon as this has been completed you'll be in a position to start making use of the new region right away. With your newly transformed attic you'll be able to have an extra bedroom, study or simply a rec room.

With a variety of loft space alteration designs you'll be able to find something that meets your taste, whilst being effortless and pleasing.

We'll supply you with no obligation quotations from loft transformation companies in Grantham who will be able to provide you with no cost surveys and quotes on your alteration. After that you can do a comparison of these loft space conversion costs and make certain to get the best bang for your buck.

Average Loft conversion cost in Grantham

The regular cost of a Loft conversion is £25000. Costs differ based upon the materials and the firm selected. The upper price range can be as high as £28750. The material costs are mainly approximately £6250

Average price per Loft conversion job in 2026

Avg. price low

Avg. price low
£18,750

Avg. price

Avg. price
£25,000

Avg. price high

Avg. price high
£28,750

£29300

£21975

£14650

£7325

£0

Prices based on actual Loft conversion costs for Grantham, as reported by local LeadsDoWork members.

Loft conversion installation cost in Grantham 2026

Labour cost £17,500
Material cost £6,250
Waste removal £1,250
Time frame: 6-12 weeks
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Loft conversion on Google in Grantham

Google searches that showed Local Quotes, 15 July to 12 October 2026

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Searches that showed one of our pages for Grantham, all services

Source: Google Search Console, the number of times our pages appeared in Google search results. It counts searches that showed the page, not quote requests.

Loft conversion searches near Grantham, 15 July to 12 October 2026

310

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133

Searches that showed our page for Sutton-in-ashfield

Grantham

Grantham is a market town in the South Kesteven area of Lincolnshire. The town carries a populace of 34, 592 individuals, all residing in 18,000 homes in the region. If you're trying to find home enhancements in the future, ensure to utilise only vetted and respected specialists in Grantham and assess quotations for the best price available on the market.

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Similar Customer Enquiries for Loft conversion in and around Grantham

14 May

Loft conversion

Melton Mowbray - LE13

Enquiry from: Richard O

Start Date: Immediate

What type of loft conversion do you need? i'm not sure - need advice when was the property built? 1980 or later how many stories is the current building? 2 storeys do you have plans drawn up? no - i

Property: detached

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FAQs

how long does a loft conversion take?

If you’re about to carry out a loft conversion project, you’d probably be wondering how long it’ll take to complete the task. Well, you’re not alone! This is one of the most common questions when it comes to loft conversion projects, however, providing a set timeframe for completion of such projects is impossible as all loft conversions vary. There are different factors that can determine the duration of your project. These factors include, the materials to be used, the type of the proposed loft conversion, the kind of staircase you’ll like to have installed, the number of windows included, the number of rooms to be added as well as a number of other influencing factors. As a result of these variables, the milestones and timings provided are only to be taken as guidelines. If you’d really like to have a set date, you can get in touch with a professional for help.

Generally, it’ll take up to 8 weeks to complete a loft conversion project.

✓ The first week activities will include putting up scaffolding, receiving the first materials for the build and creating an opening in the roof to gain access to the loft space.

✓ In the second week, the structure of the roof will be ammended and more support added.

✓ Third week, the floor joists will be fitted, building of the loft conversion will start, completion of the external roof works and commencement of plumbing and electric works.

✓ Fourth week, complete the building, construct the loft floor, fit the roof windows, insulation, ventilation and internal stud walls.

✓ Fifth week, apply plaster and plasterboard to the room walls, create a staircase opening and fit the new staircase.

✓ Sixth week, plaster the staircase area, complete plumbing and electrical works, hang the doors, fit skirting, handrails and bannisters and start decoration.

✓ Seventh week, complete the decoration and clean and wipe out all wastes.

✓ Eight week, complete all the remaining tasks.

What kinds of loft conversion are there?

There’s a huge range of different types of loft conversions. The most common are dormer and skylight or Velux conversions. There are also hip to gable and mansard conversions. The type of loft conversion that’s most suitable for your property will depend on the style of roof and the size of your loft.

Can my loft be converted?

Many types of loft are suitable for a loft conversion. In general, you will need at least 2.3 metres of headroom in your existing loft. This is to make sure there is enough headroom after the conversion. Speak to a conversion specialist about the probability and possibility of doing this in your house.

do you need planning permission for a loft conversion?

Typically, loft conversions do not require planning permission except in certain situations. They’re usually covered under what’s known as Permitted Development. Certain building works like loft conversion, rear extension and conservatories are granted planning permission by local authorities. Permitted Development, however, gives you a free range to improve your home without having any issues from the councils or regulations. Before your planned loft conversion can be covered under Permitted Development, there are some certain criteria that must be met. This criteria includes the following:

✓ The extension must not go beyond the existing slope of the roof at the front of the house.

✓ The loft space converted must not go beyond 40 cubic metres in a terraced house.

✓ The roof’s height must not be increased by the extension.

✓ The loft space converted must not reach beyond 50 cubic metres in a detached or semi detached house.

✓ The plan for the extension mustn’t involve structures like balconies, verandas or anything other structures of this nature.

✓ The roof extension should be positioned as far back as possible or at least 20cm from the existing eaves.

✓ The side that faces the window openings should be at least 1.7m beyond the floor and the windows should also be obscured.

✓ The roof extension must not overhang the existing roof or wall of the house.

✓ The materials that are to be used must be similar or the same to the materials that has already been used on the house’s exterior.

However, you should bear in mind that there are some properties that are exempt from Permitted Development. Examples of these type of properties include conservation areas, Areas Of Outstanding Natural Beauty and World Heritage sites. Permitted Development does not also provide coverage for listed buildings.

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