Construction Mastic in Hammersmith
Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in Hammersmith and the surrounding area. Send photos or drawings for a fixed quote.
- Frame perimeters left unsealed or poorly sealed
- External joints sealed in damp or cold conditions that are now failing
- Snag items on joints that need redoing before handover
Construction mastic for businesses in Hammersmith
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
About our construction mastic in Hammersmith
Since 2005 we’ve worked alongside main contractors, developers and fit-out firms. We price from drawings and the specification, agree the sequence with the site team and seal as areas are released. For construction mastic on a scheme in Hammersmith, send drawings through our quote form, or phone or email us to talk it through. Site teams most often ask us about bath and shower joints scraped during the final clean and new external sealant already peeling away, on internal decorators’ caulk, sanitary and kitchen joints and window and door perimeters. Whoever orders the work in Hammersmith, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.
The ULEZ covers the whole of Greater London, so contractors’ vehicles on a job in Hammersmith must meet its standards or pay the daily charge. Alongside that, sites usually need booked deliveries and a plan for where materials go.
We sign every job off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.
- Location
- Hammersmith (W6, W14, W12, W4)
- Region
- Greater London
- Guarantee
- 12 months on every job
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
FAQs: Hammersmith
Is Berghem Mews Business Village, near Hammersmith, within your area?
Yes. We cover Hammersmith and the area around it, including industrial estates, business parks and retail parks such as Berghem Mews Business Village. A few photos and the unit address let us price the work.
Can you work around term dates at a campus such as Polish University Abroad?
Yes. Education sites usually want the work in vacations or in phases during term, and we plan to suit. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
How long before the joints can be used?
Curing time varies by product, and we confirm it on the day, and flag anything to keep off until it has cured.
Do you work in Hammersmith?
Yes. We cover Hammersmith. To discuss a job, call the office on 01277 525 020 or send photos by email.
Does the weather affect the work?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Can fire-rated sealing at service penetrations be included?
Where the specification calls for fire-rated or intumescent sealant around service penetrations or linear gaps, we install it to the manufacturer’s tested details. The design and sign-off belong to the designer, fire engineer or building control.
How long do sealant joints last?
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.
When something else is needed
Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. It won’t fix:
- Specifying the product where the designer hasn’t
- Frame gaps too wide for sealant, which the installer needs to correct
- Glazing units that are cracked or misted
If you’re not sure, just call 01277 525 020 or email the details over and we’ll give you a straight answer.
What we seal
- Brick and block movement joints
- Internal decorators’ caulk
- Sanitary and kitchen joints
- Window and door perimeters
- Floor and skirting junctions
- Cladding and panel joints
When to call us in Hammersmith
A joint without backing rod or bond-breaker often fails early. Fixed to three faces, the sealant rips the first time the joint opens.
Look out for the following:
- Failed sealant in an existing building being refurbished
- Cracks opening in caulked internal joints
- Snag items on joints that need redoing before handover
- Inconsistent sealant finishes from plot to plot
On a campus such as Polish University Abroad, which lies south-east of Hammersmith, new teaching buildings and residences are normally built and refurbished around the academic year.
Before you book anyone
- Proof of insurance
- Can the work be phased to keep areas open?
- Will failed sealant be removed rather than covered?
- Health and safety accreditation such as CHAS
Cost factors for mastic packages
The price varies from site to site. Expect it to depend on:
- Removal of failed or old sealant
- Site requirements such as inductions and permits
- Quantities, in metres or numbers
- The size and state of each joint
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.
Details that help us quote
We can often quote from photographs and a few details. It helps to include:
- What the building is and how it’s used
- Any specification or named product
- The site address and postcode
- When you need the work done
A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or speak to us on 01277 525 020 or use the quote form to discuss it first.
Diagnose, treat, sign off
When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before any cutting starts, with the work itself typically taking as long as the agreed sequence needs, which comes down to joint lengths, access and handover dates. Planning a London job such as one in Hammersmith starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Send the building rules and access times with your enquiry.
- Drawings, specification and programme come to us.
- Quantities are measured and a fixed price returned.
- We agree with the site team which areas come first.
- Each area is sealed when it’s released.
- Joints are prepared, backed and sealed to the specification.
- After snagging, the work is handed over under our 12-month guarantee.
Getting the site ready
- Send any specification or drawings in advance
- Arrange parking or a loading space
- Let us know about inductions and permits
Get a fixed quote
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.
Read more
Facades, frames and programmes in Hammersmith
As part of Greater London, Hammersmith is inside the ULEZ, which applies to every van on site. Add booked deliveries and tight storage, and the mastic package needs planning with the site team. There are a good number of hotels within about 2 miles of Hammersmith. Hotel extensions and refits normally have to fit around bookings, so mastic dates are tight.
Further education sites such as St Mellitus Theological College (1.8 miles east of Hammersmith) are extended and refurbished from time to time, with mastic often programmed into the summer break. Hotels like W6 Hotel, under half a mile south of Hammersmith, rarely close for long, so refurbishment mastic is phased floor by floor.
Hammersmith is about 1 mile west of Kensington, in Greater London. Anywhere in W6, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Our Greater London coverage takes in 764 places. There’s a separate page for London, roughly 6 miles from Hammersmith.
Anyone looking for construction mastic in W6, W14, W12 and W4 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Among the streets we cover are The Square, Ravenscourt Square and Westcroft Square, and sites on any of them can send details for a fixed quote. We also cover 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). Bigger towns within reach 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).
Around Hammersmith
We work on buildings around The Duke of Hammersmith pub, Brook Green and Polish Library POSK in London and the streets around them. The nearest railway station is Kensington Olympia station, roughly 0.8 miles east. A little further out are West London Hospital (less than half a mile south-east) and Kurdish Museum Library and Archive (under half a mile south-west). Not far away are Campden Hill and WWT London Wetland Centre.
Nearby places to Hammersmith
What else we do in Hammersmith
Site staff or a sealant specialist?
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
Keeping the joints sound
To get the most from the new sealant:
- Brief the final clean team to avoid blades near sealant
- Check frame gaps are within the sealant’s range before sealing
- Allow flexibility for external sealing in damp or cold weather
- Get the mastic subcontractor involved early in the programme
Record which products went where in the handover file. That helps the building owner maintain the joints later. We can confirm the handover information you need when we quote.
Snag items left to the last week put handover at risk. Clearing snags area by area spreads the work out, and avoids a rush.