The Mastic Doctor team standing beside their branded vans outside an office building
Greater London · England

Roehampton mastic sealing

Our CSCS-carded applicators take on mastic sealing for building owners, managing agents and housing associations in Roehampton. Send photos or drawings for a fixed quote.

  • Movement joints with sealant missing
  • Cracked, hardened mastic round windows on a block
  • Leaks at window and door perimeters
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
Constructionline member
£5m public liability

Mastic sealing near Roehampton

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Mastic sealing for commercial buildings in Roehampton

For over 20 years we have resealed joints for owners, agents and landlords. Every applicator holds a CSCS card, and the work is backed by public liability insurance. Resealed mastic joints in Roehampton carry our 12-month guarantee. We work on external wall and movement joints, communal entrances and stairwells and balcony and threshold joints, and the failures we’re asked to look at most are cracked, hardened mastic round windows on a block and movement joints with sealant missing. Most enquiries from Roehampton start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.

Planning mastic work on a London block means notices to residents, access to flats and agreed working areas. We work to the agent’s notice and access plan, so residents know what’s happening.

What our 12-month guarantee covers is the way we did the job: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Roehampton (SW15, SW13)
Region
Greater London
Guarantee
12 months on every job
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026

When it isn’t the sealant

Before quoting, we check that sealant is the right answer. It isn’t the answer for:

  • Misted or failed double-glazed units
  • Leaks through the frame itself rather than the perimeter
  • Asbestos-containing sealant, which we don’t remove

If in doubt, ring 01277 525 020 or email us and we will say what we think before you book.

Joints and surfaces we work on

  • Communal entrances and stairwells
  • Window and door perimeters on blocks
  • External wall and movement joints
  • Shopfronts below residential blocks
  • Balcony and threshold joints
  • Communal kitchens and washrooms

Site staff or a sealant specialist?

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

Questions we are asked in Roehampton

Can you quote for a block close to Barnes station?

Yes, and several blocks can go on one quote. Photos of each elevation help us quote accurately.

Is Chartwell Business Park, near Roehampton, within your area?

Yes. We cover Roehampton and the area around it, including industrial estates, business parks and retail parks such as Chartwell Business Park. A few photographs and the unit address let us price the work.

Can you follow the specification on our project?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

Who decides which product is used?

Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

How long does a typical visit take?

That varies with the scale of the job, though a typical visit usually takes a few days for most blocks, with larger programmes scheduled building by building. For bigger or phased jobs, we’ll set out a timescale with the quote.

When is resealing likely to be due?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Treat them as maintenance items and inspect them regularly.

How a job runs

Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work typically takes a few days for most blocks, with larger programmes scheduled building by building, and our waste is bagged and taken away as we go. In Roehampton, most buildings stay in use during the work, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.

  1. A building-by-building inspection lists the failed joints.
  2. You get a fixed quote, per block or for the whole programme.
  3. Dates and areas are agreed so occupiers can be told.
  4. Failed sealant is removed and the faces prepared.
  5. New sealant goes in with backing rod and primer where needed.
  6. We check the finished work and confirm the guarantee.

Getting the site ready

  • Tell staff and tenants when we’ll be in
  • Make sure the joints can be reached
  • Send your site hours and access windows

Quotes

A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or call 01277 525 020 or email us if you’d rather talk the job through.

Get a quick quote

Related advice

Mastic sealing in Roehampton: the local picture

London blocks come with residents to inform, access to agree and often a concierge or estate office to work with. Our programme follows the access you agree with residents.

Churches, halls and community buildings such as St Margaret's Church are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time. If you manage student housing near a university such as University of Roehampton, under half a mile to the west of Roehampton, the summer turnaround is the time for mastic.

Roehampton is about 2 miles south-west of Fulham, in Greater London. We cover Roehampton and the rest of Greater London, with the same fixed quotes and 12-month guarantee as everywhere else. Roehampton is one of 764 places in Greater London on our list for mastic joints. We also cover London, some 7 miles away.

Postcode districts covered here: SW15 and SW13. For a building on Rodway Road, Cortis Road and Torwood Road or nearby, we can quote for mastic joints. If your building is just outside Roehampton, we cover Putney (1 mile north-east), Barnes (1 mile north), Mortlake (1 mile north-west), East Sheen (1 mile north-west) and Putney Vale (2 miles south-west). Further afield, our area takes in London (7 miles north-east), City of Westminster (5 miles north-east), Marylebone (6 miles north-east), Kensington (3 miles north-east), St Pancras (7 miles north-east) and Shoreditch (8 miles north-east).

Landmarks near Roehampton

In Roehampton, that means premises near King's Head pub, The Falcons School for Girls and ARK Putney Academy. The nearest railway station is Barnes station, about 0.8 miles north of the centre. Well-known places in the area include Queen Mary's Hospital (less than half a mile west) and Putney Exchange (1 mile north-east). The countryside around Roehampton includes Kew Gardens Lake and Duke's Hollow.

Map of Roehampton © OpenStreetMap contributors

Why act early in Roehampton

Resealing ahead of leaks keeps it to a maintenance task. Once water has tracked in, the repair list grows, and the complaints come with it. Repeat call-outs disrupt occupied London buildings, so a proper job first time, with the old sealant fully removed, is worth it.

Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Why clients in Roehampton choose us

  • RAL and finish matching where the product range allows
  • Products installed to the manufacturer’s instructions
  • Colours confirmed for the specified product
  • Our applicators hold CSCS cards

See what affects the cost or our accreditations.

Signs you need mastic sealing in Roehampton

Buildings move with temperature and moisture, and the sealant takes up that movement. If the joint or the product wasn’t suited to the movement, it splits and fails early.

Common reasons buildings call us in:

  • Open joints in brickwork or panels
  • Estate-wide sealant that is simply worn out
  • Occupiers reporting cold air round windows
  • A mix of products and colours from past repairs

Site managers at schools like Granard Primary School can fit frame mastic into the summer works.

Questions to ask before you book

  • Will RAMS and insurance details be available?
  • Their approach to joint depth and backing
  • What the guarantee covers, and for how long
  • Will CSCS-carded applicators be on site?

Choosing a commercial sealant contractor

For managing agents and facilities managers

Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Sites in Roehampton can sit alongside others in a wider programme across Greater London.

Accreditations

Trusted. Accredited. Insured.