Make suitable existing basement or cellar space more useful, with its intended use guiding the construction scope.
★ 4.9/5 · 130+ combined reviews across Google and Edinburgh Trusted Trader · Written quote before work starts
This service does not excavate a new basement. Moisture, drainage, headroom, access and approvals can prevent a habitable conversion. Specialist design remains with the professionals you appoint.
This offer starts with an existing basement or cellar beneath an Edinburgh home. It does not cover forming a completely new basement by excavating below a building. Not every existing space can become a dry, comfortable or compliant habitable room.
The first decision is what the finished space needs to do. Storage, a utility area and habitable accommodation place different demands on headroom, light, escape, ventilation, heat and moisture control. Structure, drainage, approvals and title constraints can stop or reshape the idea before finishes are discussed.
The homeowner appoints the suitable structural engineer, building surveyor and moisture or waterproofing specialist. Sweet Homes is the contractor and prices their defined construction information. Specialist design and guarantees remain with the named specialist rather than being implied by the general building quotation.
Photographs of interiors, details and work in progress. Captions describe what each image shows.
A basement is part of the ground and the building above it. Three groups of constraints need to be understood together:
The fit check starts with existing plans or photographs, the room’s current condition, the intended use and any known water history. Sweet Homes can record visible site facts for the construction brief. The homeowner’s appointed specialists investigate moisture, levels, drainage and structural constraints where professional assessment is required.
Once the design and approval route are defined, the written scope can coordinate enabling work, structure, moisture strategy, drainage, ventilation, insulation, services and finishes. If opening-up reveals a different wall, floor or water path, the contract and professional team govern the next step.
A basement conversion may form part of a whole-home renovation or require separate structural alterations. The sequence is built around the property-specific findings, not a standard basement package.
Indicative budgets start at around £18,000+ including VAT. This is a broad starting point, not a price promise or a quotation. A project budget follows assessment of the basement, intended use, existing conditions and agreed scope.
The first useful commercial step is a feasibility-led scope that distinguishes required work from optional finishes and identifies which findings still depend on specialist investigation. The renovation cost guide explains how Sweet Homes separates allowances, assumptions and exclusions in broader projects.
Stage, timing and budget are optional for your first enquiry.
Establish feasibility and professional design information before comparing build prices. These general guides explain the warrant process and what a quotation needs to define.
We supply and fit every job. We do not offer labour-only work and we do not offer fit-only work, because one firm owning both the materials and the workmanship gives you one clear line of responsibility. The whole sequence, from first call to handover, is set out on how we work.
Can every basement be converted?
No. Headroom, water, structure, drainage, access, light, ventilation, approvals or cost can make the intended use impractical. The point of the first assessment is to identify those constraints before a full specification is commissioned.
Does Sweet Homes excavate new basements?
No. This service is scoped to converting an existing basement or cellar. Major excavation below an existing building is outside the initial offer described here.
How is damp handled in a basement conversion?
The source and movement of moisture need to be understood first. Where a specialist design or system is required, Sweet Homes coordinates with the suitable specialist rather than presenting a generic tanking treatment as the answer for every traditional building.
Will a basement conversion need a building warrant?
It is likely to need a project-specific building standards review, especially where use, structure, drainage, stairs, ventilation or fire safety change. Planning, listed-building or title requirements may also apply depending on the property.
Can a basement become a bedroom?
Only where the proposed room can satisfy the requirements for its intended use. Light, ventilation, escape, moisture, heat, access and approvals need to be resolved before a bedroom is described as viable.
Who designs the structural or waterproofing work?
The appropriate engineer or specialist designs work within their professional scope. The project quotation identifies those responsibilities and how their information connects to the general building work.
Why do you not offer labour-only work, or fit materials we buy ourselves?
No. We supply and fit every job, whatever its size. We do not offer labour-only work and we do not offer fit-only work. When one firm buys the materials and carries out the work, you have one clear line of responsibility if something goes wrong, rather than an argument between the product and the fitting. If you have already chosen products, send the product codes and we will buy those exact items and include them in the quotation.
How soon can works start?
For major projects, allow at least four weeks from your first enquiry. If something needs attention sooner than that, say so on the call and we will point you to the right emergency trade for the immediate problem while the planned work is scheduled properly. Tell us what you need and when. Send your enquiry by form or email. We will reply and arrange a follow-up call to talk through the project. A site visit is arranged afterwards, where useful. The written quotation sets out the agreed work. The start date is agreed once you have accepted the quotation. Where the work needs a building warrant, the warrant must be granted before works start.
Two published records of basement and cellar work: a basement refitted after flood damage, and a New Town cellar door repair.
Bruno and his amazing team completely refitted the basement of the Tailors shop which had been damaged by flooding. They put new wall surfaces in, painted them and installed lots of useful shelving. Their work was neat and of the highest standard. They were punctual, hard-working and always tidied up after themselves at the end of the day. We all said how nice it was to have them working in the shop, and none of us would hesitate to use their services again, either here at work, or in our own homes.
Verified Edinburgh Trusted Trader review
Very happy with this team, who repaired a set of New Town cellar doors. They arrived when they said they would, their work was high quality and both Bruno and Dennis a delight to work with. We will use them again, and recommend them to our friends and neighbours.
Verified Edinburgh Trusted Trader review
Tell us your general area and how you want to use the existing basement or cellar. Plans, measurements and a settled budget can follow. Send your enquiry by form or email. We will reply and arrange a follow-up call to talk through the project.
Send your enquiry by form or email. We will reply and arrange a follow-up call to talk through the project. We use your details to reply and handle the service you request. Privacy policy.
Project responsibility
Brunon oversees project programmes across Edinburgh and is typically available by phone or email. The staff assigned to your job handle the day-to-day site work independently within the agreed scope, with the responsible contact confirmed before work starts.
Customer feedback
4.9/5 from 130+ combined reviews
Google and Edinburgh Trusted Trader
