Building contractors in London

houseUP are building contractors in London that deliver highest quality construction services. We cover all areas of London, including North West London,  Chiswick and Hampstead.

With our in-house team of structural engineers, construction managers and designers, we specialise in

  • alterations on historical buildings that require deep structural impact
  • extensions and conversions targeted to maximise the increase in value of a property
  • choice of finishes with the highest rate between quality and cost

We use technology for an innovative approach to construction, using:

  • Digital tools applied to traditional construction
  • Combination of on site and off site construction, based on requirements and constraints of each project
  • Sustainable materials and advanced solutions for high energy efficiency and low running and maintenance costs
Construction Victorian building conversion_exterior brick and flints and bespoke iron gate

Our services

New builds

houseUP services as a building contractor in London include new builds of all size, from family houses to developments with multiple residential units, block of flats and mixed use developments.

We deliver using traditional construction techniques and advances innovative solutions, like off site construction of one or multiple modules.

Off-site construction is a good option for:

  • quicker construction time
  • lower impact on the neighbourhood (noise, access etc)
  • lower cost, especially for multiple units built using the same modules
  • lower environment impact for material and on site disturbance

Traditional methods are more feasible for:

  • one-unit projects for single houses
  • specific designs, like concrete or steel and glass structures
  • sites where access is difficult for big lorries or cranes
Multi unit conversions

houseUP and its teams have vast experience in conversions of buildings into residential and mixed purpose developments in London. As building contractors, we manage all sorts of multi conversion projects in London, taking care of the construction and the design, if planning and drawings are needed for the project.

Our construction managers have specific competence with:

  • fire, acoustic and thermal insulation performance for the specific use of the new unit
  • ventilation and air conditioning for developments including restaurants and commercial kitchens
  • preparation and planning for new water, electrical and gas meter installation
  • access to material and finish suppliers to get special discounts for bigger development projects

houseUP can cover all the logistic issues for bigger developments in London like:

  • accurate risk assessment, planning, schedule of works, method statements and other documentation for the project
  • liaising with local authorities, residents committees etc to manage parking, working hours, occupation areas etc
  • full management of Health & Safety and Construction Design Management (CDM)
  • in-house management of site security, including guardians, CCTV and other alarm systems
Basement conversions

houseUP provides building contractor services for all types of basement construction in London.

Our internal teams and external contractors have experience and competence in conversion of existing basement spaces to different uses, like cellars into living spaces.

We also perform excavation from scratch of basements under existing buildings.

For more information check our basement conversions page.

Loft conversions

Loft conversions in London are amongst the most popular house improvements projects.

houseUP acts as a building contractor and can manage planning and construction, covering several aspects of loft conversions, like:

  • Feasibility study, based on the structure of the existing buildings
  • Legal and regulatory requirements, including party wall agreement, permitted development and planning processes, building regulations and more
  • Structural, architectural and interior design support throughout the project

For more info you can check our loft conversions page.

House extensions

houseUP building contractors offer unique solutions for house extensions in London of all types.

We have experience in rear, side, wrap around extensions on one or two storeys. We manage house extensions as building contractors for terraced, end of terrace, semi detached and detached houses.

You can find more information on our house extensions in London on our house extension page.

House renovations

houseUP renovation projects are specialised in alterations that increase the quality of life and the market value of houses and flats in London. Our clients have access to exclusive Italian manufacturers of kitchens and porcelain tiles.

To read more about our house renovations in London check our page on house renovations.

What to expect when working with houseUP

houseUP works as a building contractor in London. We created a streamlined tested process to use the best approach for each specific project. We assign the optimal tradespeople, teams and managers. We define the best plans, schedule, site management to each unique construction project in London.

Structural work

We assign one of our in-house structural engineers to each project. This allows us to ensure higher standards in the construction, with a particular attention to the structural work. Especially when altering an old building with structural modifications, we can dynamically prevent, detect and sort out structural issues. With our structural onsite optimisation, the findings after the strip out or during the construction don’t cause delays or additional costs to our clients.

Professional indemnity and other insurances

As professional building contractors, houseUP is covered with all the professional insurances needed to carry out all types of construction projects, including professional indemnity insurance for structural optimisation.

Building regs and other requirements

houseUP takes care of building regs and other legal requirements for construction works, including for example H&S documentation and compliance, planning conditions, party wall agreements etc.

Project management

houseUP has in-house project managers who studied and worked in the UK for several years. They are all university educated in engineering or architecture. They have worked on building sites since the very start or their career and joined houseUP for its innovative and modern approach to construction.

Finishing and materials

Finishing is the most visible aspect of a house renovation and makes a big difference in the overall happiness after a big refurbishment project. houseUP has a special attention to finishing details, both in choosing materials and in installation. We provide high quality finishing and materials at extremely competitive prices. In particular, we have direct access to the top Italian manufacturers of porcelain tiles and kitchens. This means getting higher spec finishes for budget, or lower costs for the finishes in the specs.

Construction innovation

As building contractors, we are constantly researching and keeping up to date with the latest construction technology. Attention to the environment impact, materials life cycle, energy efficiency are the focus of our innovation roadmap.

We specialise in structurally challenging projects and we partner with off-site construction companies and specialised architects and designers, to build with a low impact on the environment and the existing built areas. Off-site construction can often allow lower budgets and more flexible design and planning options.

Digital technology

We use digital tools in our daily activities, for project management and direct communication of all the parties involved in our projects. For each project we create a dedicated instance on houseUP communication platform, to share files, pictures, comments and to exchange immediate feedback on anything regarding the project. The platform allows us to keep a sleek and transparent decision process and tracking of all the conversations in one place.




houseUP estimates the costing of your project using a scientific approach

  • get an estimation generated with specialised software and professional supervision
  • receive a quotation that breaks down every single cost detail
  • understand what is and isn’t included in your quote
  • monitor and review the cost of materials and finishes
  • enjoy our full no-surprise guarantee on the final cost
  • Learn 8 interesting facts a good construction estimate takes into account from our Infographic

Building contractor projects in London


This big family house in Gants Hill, London, is one of our favourite residential design and build project. We project included:

  • two storey rear and side extension
  • loft conversion
  • kitchen installation and full renovation
  • 3 new bathrooms fittings
  • wooden flooring, carpet, tiling installation throughout
  • all finishes supply and fit
Rear extension with glass doors on the garden, Gant's Hill, London

“It was daunting having to think about a company to do such major works for us, however Mike and Vinz were great all throughout the project and helped us achieve what we wanted. They are always available to speak to, and are knowledgable and friendly. The transparency is something I do not think we could have got with most other companies, and for this I am grateful. Thank you guys!”

Penthouse in Shoreditch, London
Industrial penthouse in Shoreditch, London

For this residential build project in London we earned the cover of the Real Homes magazine. It’s on the top floor of a former warehouse in Shoreditch.
For this project the finishing details were especially important. We love the copper details, which were handcrafted onsite by our team. All the original windows were refurbished and repainted to their splendour.


Mike and Vincenzo came to the rescue to renovate our penthouse in Shoreditch, London, after our first builders did a runner. They are great guys and trustworthy, they’re real construction professionals and manage their subcontractors well to ensure a good quality of finish..

Construction Victorian building conversion exterior brick and flints and bespoke iron gate, The Old Foundry
Conversion of a Victorian foundry into 7 mews houses

For the Old Foundry project we worked in partnership with the designers and the developers to create 7 mews houses from a Victorian foundry built in the XIX century.

The challenges here were all about respecting the original structure while creating a comfortable living space for real people.


Vincenzo, Mike and their teams of subcontractors are a breath of fresh air to the construction market. They are extremely well organised and professional, providing a high end service, with clear and constant communication to clients throughout their projects, not matter how big or small. We enjoy working with houseUP as the projects are realised with ease, on time and on budget. We highly recommend these guys to all of our clients for construction projects of all sizes in London and beyond!


Loft conversion with terrace in a Victorian mansion in Chiswick

This loft conversion in Chiswick is a mansard and dormer conversion from an existing double pitched roof.
The challenge was to dynamically optimise the structure while the work was in progress. We maximised the headroom installing the new joists in between the existing ceiling joists, instead of placing them on top of the existing.

Construction work and fit out of a Oseyo restaurant in Waterloo, London

Located on one of the busiest streets in London. We carried out all the project, including general construction, plumbing, wiring, ventilation and air conditioning. We sourced and installed the finishes, including  Italian porcelain tiles and handcrafted timber details for the ceiling and the internal walls..

Chiswick, London - Full renovation and conversion of the roof space in a Victorian block of flats

Get in touch with us for a chat and more info on our work as building contractors in London. You can call us on our free line, live chat or email.