07450 310772sales@uhmbasements.co.uk

FMB  ·  Delta Registered  ·  £10M Insured  ·  25-Year Warranty

About

Services

Areas

Our Work

Reviews

Contact

07450 310772Book a site visit

Our Work

# London basements, finished properly.

A portfolio of completed projects across the capital, from underpinning and structural works through to finished kitchens, receptions and rear-garden basement extensions. Every project delivered by our directly-employed team.

Selected Projects

## Three London basements, delivered end to end.

Wandsworth

### Victorian terrace, full basement conversion

Full underpinning · Type C waterproofing · Fit-out

2.4m clear headroom family reception with engineered oak floor, integrated joinery and Delta cavity-drain waterproofing to BS 8102:2022.

Underpinning Basement Conversion 

Putney

### Edwardian family home, open-plan lower ground

Excavation · Structural steels · Kitchen fit-out

Open-plan kitchen and dining room with 4m sliding rooflight, structurally engineered spine beam and full Delta drainage system.

Basement Excavation Waterproofing & Tanking 

Chelsea

### Georgian townhouse, formal reception room

Underpinning · Waterproofing · Heritage joinery

Formal reception room in deep-blue lime paint, restored marble chimneypiece and integrated cavity-drain waterproofing hidden behind heritage joinery.

Basement Conversion Sump & Pump Systems 

Gallery

## Every UHM project, in one place.

Start your project
## Ready to add a floor beneath your home?
Speak to Daniel and the UHM team. Free site survey, honest advice, fixed-price proposal, no obligation.

- Free site visit
- Fixed written quote
- 25-year warranty
- £10M insurance
- Directly-employed teamRequest a survey  07450 310772

Underhouse Management Ltd, London's structural basement specialists. A directly-employed team of 25, delivering meticulous below-ground work across the capital's finest addresses. Established 2009.

FMB·Delta Registered·Considerate Constructors

### Services

- Basement Excavation
- Basement Conversion
- Waterproofing & Tanking
- Underpinning
- Cellar Conversion
- Basement Extension

### Areas Served

- London
- Wandsworth
- Clapham
- Wimbledon
- Putney
- Balham
- Chelsea
- Kensington
- Richmond upon Thames

### Contact

- 07450 310772
- sales@uhmbasements.co.uk
- Unit C220A, Trident Business Centre,89 Bickersteth Rd, London SW17 9SHBook a site visit 

© 2026 Underhouse Management Ltd (t/a UHM Basements). Company No. 06968521.

Privacy Policy·Terms & Conditions·Cookie Policy·25-year warranty · £10M insurance

Call nowBook a site visit