Hammersmith mastic sealing
Mastic sealing for Hammersmith, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Leaks at window and door perimeters
- Window mastic that has split and shrunk
- Worn sealant at communal door frames
Mastic sealing for businesses in Hammersmith
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
How the quote is worked out
To price the job, we consider:
- Induction, permit and paperwork requirements
- Quantities, in metres or numbers
- Specialist products, such as fire-rated or hygienic sealants
- Distance, for remote addresses
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a quote.
Sending details for a quote
For an accurate fixed quote, we need to understand the site. Useful things to include:
- What the building is and how it’s used
- Whether an asbestos survey exists
- Anything awkward about access or site hours
- When you need the work done
A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or ring 01277 525 020 or email us to discuss it first.
How we handle mastic sealing in Hammersmith
Older blocks and commercial buildings can have mastic that contains asbestos. Before we disturb it, we ask to see the asbestos register or survey and if it’s suspected, work stops until it’s tested. We don’t remove asbestos-containing materials. If you’re dealing with no planned programme for sealant and the same joint failures repeated across a portfolio, we can help, whatever the surface. Whoever orders the work in Hammersmith, the brief is usually the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Across Greater London, Hammersmith included, the ULEZ applies, and parking and loading rules differ from street to street. For a block or estate, it helps to know where we can park and stage materials.
A 12-month guarantee applies to all our work. Should something we installed fail, call the office on 01277 525 020 or email the details over and we’ll come back to it.
- Place
- Hammersmith (W6, W14, W12, W4)
- Wider area
- Greater London
- Cover
- 12 months on every job
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
How the job changes by surface
External movement joints
External movement joints take up expansion and contraction. Failed sealant in a movement joint lets water in.
Tenement and older buildings
Older mastic can contain asbestos, so we check the asbestos register or survey first. If it’s suspected, work stops until it’s tested.
When it isn’t the sealant
Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:
- Water coming in from the roof or rainwater goods
- Asbestos-containing sealant, which we don’t remove
- Frames that are rotten, warped or broken
If in doubt, give us a call on 01277 525 020 or send photos by email and we will say what we think.
Where we work in Hammersmith
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Balcony and threshold joints
- External wall and movement joints
- Communal entrances and stairwells
Places near Hammersmith
Also in Hammersmith
Why act early in Hammersmith
Piecemeal repairs over the years often leave mismatched sealant. Resealing a whole building gives a consistent finish and one 12-month guarantee. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.
Pricing mastic joints depends on quantities, condition and access, and any specification that applies. Call for a quote.
Why choose Mastic Doctor in Hammersmith
- Work to your specification and the manufacturer’s guidance
- Colours confirmed for the specified product
- Commercial sealant work since 2005
- Clear, fixed quotes
See how commercial sealant jobs are priced and our accreditations.
Should maintenance staff do it?
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
Looking after buildings in and around Hammersmith
Blocks in London are normally run by managing agents, landlords or housing associations, with residents to notify and access to arrange. Our programme follows the access you agree with residents.
If your remit includes a building such as Corona Theatre School, frame and door mastic can be programmed for the holidays. Owners of student blocks near Polish University Abroad, under half a mile south-east of Hammersmith, can schedule frame and external mastic for the summer vacation. Trustees of buildings like Church of the Holy Innocents can bring frame and external mastic into a planned maintenance list.
Hammersmith is about 1 mile west of Kensington, in Greater London. We send applicators to Hammersmith for mastic joints. Hammersmith is one of 764 places in Greater London on our list for mastic joints. For work in that direction, see our London page, about 6 miles away.
Commercial sites across W6, W14, W12 and W4 are covered for mastic joints. We cover commercial and managed buildings on The Square, Ravenscourt Square and Westcroft Square and the roads nearby. Just outside Hammersmith, we also work in Brackenbury Village (1 mile north-west), Brook Green (1 mile east), North End (1 mile east), West Kensington (1 mile east) and Old Chiswick (1 mile south-west). Nearby towns on our patch include London (6 miles east), City of Westminster (4 miles east), Marylebone (4 miles north-east), St Pancras (5 miles north-east), Shoreditch (7 miles east) and Walthamstow (11 miles north-east).
Landmarks near Hammersmith
We work on buildings around The Duke of Hammersmith pub, Brook Green and Polish Library POSK in London. For rail, the closest station is Kensington Olympia station, about 0.8 miles east. Other landmarks nearby include West London Hospital (less than half a mile south-east) and Kurdish Museum Library and Archive (less than half a mile south-west). Green spaces nearby include Campden Hill and WWT London Wetland Centre.
Your questions answered
Do you take on jobs in Hammersmith where loading and access are tightly controlled?
Yes, most London buildings have access rules of some kind, and we plan around them. Share the building’s contractor rules and we’ll work to them. All of Greater London is inside the ULEZ, and our planning allows for it
Can you quote for a block close to Kensington Olympia station?
Yes, and several blocks can go on one quote. Give us the building’s details and say how residents are notified, and we’ll quote and plan to suit.
Do you work in Hammersmith?
Yes. We cover Hammersmith, and the simplest way to start is to call the office on 01277 525 020 or email a schedule or drawings.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.
Is it fine to apply new sealant on top of old?
No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
How do you reach windows on upper floors?
Access is discussed and agreed before the quote is fixed. Tell us the number of storeys and whether scaffold or other access is planned and we will confirm the approach in the quote.
Is mastic sealing guaranteed?
There is a 12-month guarantee on our workmanship, backed by public liability insurance.
From enquiry to sign-off
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then handed back before the next one starts. All of Greater London is in the ULEZ, and kerbside space in Hammersmith can be scarce. Let us know about any on-site parking or loading arrangements when you send the job details.
- First comes a look at the joints and, for older buildings, the asbestos records.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- Joint faces are cleaned, backed and resealed.
- We finish each building before moving to the next.
Before we start on site
- Point out parking and an unloading spot
- Let building users know which areas are affected
- Share your working hours and any access restrictions
Quotes
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or email a schedule or drawings.