Expert House Renovation Services in London

At Bloom Builders, we specialise in comprehensive house renovation London projects, transforming properties across the city into modern, functional, and stylish homes. Whether you're updating a single room or undertaking a full property refurbishment, our experienced team delivers high-quality results tailored to your vision.

Comprehensive Renovation Solutions

Our renovation services encompass every aspect of home improvement, ensuring a seamless experience from concept to completion:

  • Structural Alterations: Including chimney removal and chimney breast removal to create open-plan living spaces.

  • Interior Fit-Outs: Installation of stud walls and partitions, plastering, and bespoke joinery.

  • Electrical and Heating Systems: Upgrading wiring, lighting, and heating solutions to meet modern standards.

  • Kitchen Renovations: Designing and installing custom kitchens that blend functionality with aesthetic appeal.

  • Bathroom Renovations: Creating luxurious and practical bathrooms tailored to your needs.

  • Insulation Improvements: Implementing stud wall insulation to enhance energy efficiency and comfort.

  • Finishing Touches: Professional painting and decorating to complete your home's transformation.

Legal and Compliance

We navigate all necessary legal requirements to ensure your renovation complies with local regulations:

Planning Permissions: Assistance with obtaining necessary approvals for structural changes.

  • Building Regulations: Ensuring all work meets current safety and construction standards.

  • Party Wall Agreements: Managing agreements with neighbours for shared structures.

  • Health and Safety Compliance: Adhering to CDM regulations to maintain a safe work environment.

Project Examples

Our portfolio showcases a range of successful renovation projects:

Huron Road, SW17: Complete home renovation featuring a modern kitchen, bathroom, bedroom, and fireplace design.

  • Montholme Road: Side return extension with a rooftop terrace, modern dining space, and bathroom renovation.

  • Rodenhurst Road: Elegant home extension and kitchen renovation, enhancing living space with contemporary design elements.

Why Choose Bloom Builders?

  • Fixed Price Contracts: Transparent pricing with no hidden costs.

  • Full Project Management: From initial design to final touches, we handle every aspect.

Design & Build Expertise: Our experienced team ensures high-quality craftsmanship and attention to detail.

Start Your Basement Conversion Journey

As experienced basement builders in London, Bloom Builders is dedicated to delivering exceptional results. Contact us today to discuss your project and discover how we can transform your basement into a valuable living space.

Call us: 0207 585 2020 (available 24/7)
WhatsApp: 07765 948 069 (Ross)
Email: hello@bloombuilders.co.uk
Request a free consultation

For an instant quote on your basement project, use our instant quote tool

All our projects come with

  • Fixed Price Contracts

  • Full Project Management

  • Design & Build expertise

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Basements

In order to build a basement, you underpin the existing masonry wall or form a retaining wall in the garden to the desired depth of the basement. Once the building above and garden around is stable, the main area is excavated down and a new concrete slab is poured. The concrete box is then wrapped in waterproof membrane and a pump system is installed. Ready for fit out.

Please see our basement FAQs below:

Basements FAQs

  • A typical half basement takes around 4 month to dig out and under pin. A full basement takes around 6 months to dig and underpin. Once structurally complete, the waterproofing is installed along with a perimeter stud wall to protect the membrane, this takes around 1 month to complete. Then it is standard above ground works which could take between 2 and 6 months to complete depending on teh complexity of the project. In summary, we expect basements to take just over 6 months for a half basement and just under 12 months for a full basement, start to finish .

  • Prices for new basements are approximately £3,000 per sqm for the shell only. For a full fit out the prices are approx. £6,000 per sqm. It is worth noting that the cost of basements depends hugely on depth and current conditions of site and it could be higher or lower than these numbers.

  • Yes! Almost all houses can have basements done.

  • The biggest basement you can achieve through planning must leave 50% of the front and rear gardens unexcavated.

  • There are a few determining factors involved but most basements have a comfortable ceiling height of 2.50-2.70m

  • Our basements usually include a playroom, guest bedroom, wine rooms, media rooms and gyms.

  • If you basement design includes rooms that do not have means of natural ventilation you will require a HVAC system, mostly in the form of a recuperator or heat exchange unit to provide fresh air to the rooms.

  • The lightwells to the front and back should provide enough daylight and fresh air to the rooms, so we always aim for a depth of at least 1.2m but urge more. It may be tempting to skimp on this section but we recommend the lightwell goes to the floor level of the basement as it is very difficult and very unlikely that you will go back and lower it later but the increased height will add more light into the basement for the life of the structure.

  • We use Type A Waterproofing which is based on membranes provided by the market leader Delta Membranes. With this method the perimeter of basement will be lined with a non-permeable membrane to allow any water to be safely drained away before it reaches the internal finishes.

  • It is beneficial and cost saving to have an existing cellar, basement extensions can be built without one.

  • You can dig under your kitchen slab but you most likely will need to change your floor build up from a slab to a suspended stucture. This usually means at the very least the floor is changed which means the kitchen will have to come out and go back in again.

  • There needs to be some sort of access on the ground floor to allow removal of soil, so at the very least your front room will be affected to allow for a conveyor belt to be installed.

  • The depth of the basement (and storeys involved) is dependant on ground conditions, planning permissions and neighbouring properties. Due to changes made by London boroughs it is unliely that more than one storey will be permitted.

  • A full basement build is a very intrusive project and we recommend that our clients do not live in during the work. However we have worked with clients in the past who decided to stay in. Be aware that there will be significant dust, noise and vibration nuisance.

  • Yes, planning permission is required if you are digging out a new basement or adding new lightwells to the property. Our partner firm Malone + Pike can help obtaining the required permissions.

  • Planning permission is required for new basements as well as Party Wall Awards with your neighbours

  • You will get planning for an under garden basement if you leave 50% of the front and back gardens un-excavated.

  • Building work is covered by a 6 year warranty. The water proofing membrane comes with a 30 year product guarantee. If you wanted to insurance back these guarantees, you can do for an additional fee but it is not cheap.

  • We are covered by our standard Employer's Liability and Public Indemnity insurance whilst our specialist basement contractors are covered by specific basement insurance covering every project individually.

  • We charge a mobilisation deposit to book in the works and arrange the first weeks on site. Once the project has started we will raise fortnightly valuations based on progress on site. This way you will always be sure that your budget is monitored and you will never pay too much. The payments are split between us and our contractors.

Get in touch.

To get in touch, please fill in the form on the right or email us. Alternatively you can call 0207 585 2020 or call and whatsapp 07765 948 069. We’ll get back to you as soon as we can.