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

Mastic contractors in Old Chiswick

Looking for construction mastic in Old Chiswick? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Cracks opening in caulked internal joints
  • Mastic snags holding up handover
  • Different trades sealing to different standards
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Construction mastic across Old Chiswick

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

Construction mastic in Old Chiswick, done properly

A typical mastic package covers more than window perimeters: frame perimeters inside and out, caulking to trims and boards where the specification calls for it, sanitary silicone, kitchens, and the final snag list. Splitting those between trades often leaves gaps in responsibility. Most enquiries involve different trades sealing to different standards and oversized or tapered gaps around new frames, on floor and skirting junctions, brick and block movement joints and cladding and panel joints. A single leaking joint is often how a building in Old Chiswick first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.

Around Old Chiswick, as across London, much of the work is refurbishing existing buildings as well as building new ones. Replacement windows, recladding and fit-outs leave perimeter and facade joints to seal, often next to people still using the building, so tidy, well-planned work matters.

Every job is signed off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.

Place
Old Chiswick (W4, SW13, W6)
Wider area
Greater London
Cover
A 12-month guarantee
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Honest limits

We check first that sealant really is the fix. It won’t put right:

  • Faulty frames rather than failed sealant
  • Deciding which fire-stopping product a penetration needs
  • Joint design decisions that belong to the architect or engineer

If you’re not sure, just call the office on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer.

Joints and surfaces we work on

  • Sanitary and kitchen joints
  • Window and door perimeters
  • Brick and block movement joints
  • Cladding and panel joints
  • Floor and skirting junctions
  • Internal decorators’ caulk

What we are called out for in Old Chiswick

A joint without backing rod or bond-breaker often fails early. Bonded to the base of the joint and both sides, sealant can’t stretch evenly.

Most enquiries start with something like this:

  • Perimeter gaps outside the sealant’s range
  • Mastic snags holding up handover
  • Bath and shower joints scraped during the final clean
  • Cracks opening in caulked internal joints

Work at a hotel such as Chiswick Lodge Hotel, 0.6 miles to the north of Old Chiswick, tends to be programmed around bookings, mastic included.

Comparing quotes

  • Who will actually carry out the work
  • How joint depth will be controlled
  • Is the sealant right for the movement and the substrate?
  • Are they CHAS accredited or on Constructionline?

How to choose a sealant contractor

What affects the price in Old Chiswick

A fixed quote reflects the actual work. It allows for:

  • Site requirements such as inductions and permits
  • Access and working height
  • Whether old sealant has to be cut out first
  • Joint width, depth and condition

Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

Before you send an enquiry

It doesn’t need to be a full survey. These details are enough to start:

  • Your programme or deadline
  • Any specification or named product
  • What the building is and how it’s used
  • The site address and postcode

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, ring 01277 525 020 or send photos by email.

Different surfaces, different methods

Snagging before handover

Damaged, missed or untidy joints make up most snag lists. Snagging can be included or priced separately, depending on what suits the programme.

Fire-rated sealant where specified

Fire-rated sealant is one type of fire-stopping product. Collars, wraps, batts and boards are specified for other services, and we’ll tell you if the detail calls for something else. Tell us what records you need and we will confirm with the quote.

On site: what to expect

A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work usually takes whatever the programme allows, since the work follows the trades as areas are released, and our waste is bagged and taken away as we go. Planning a London job such as one in Old Chiswick 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.

  1. First we take quantities off the drawings and read through the specification.
  2. We return a fixed quote that ties the mastic package to your programme.
  3. You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
  4. Work follows the programme, area by area, as rooms and elevations become ready.
  5. Every joint is prepared, set to depth and sealed with the specified product.
  6. We close out snagging and hand over with a 12-month guarantee.

What we need from you

  • Explain the parking and delivery arrangements
  • Share the asbestos register for older buildings
  • Make sure the joints can be reached

Getting a fixed quote

Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.

Get a price

Related advice

New build and refits around Old Chiswick

There are a good number of hotels within about 2 miles of Old Chiswick. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up. As part of Greater London, Old Chiswick is inside the ULEZ, which applies to every van on site. Delivery slots and scarce storage shape how and when the mastic goes in.

For contractors on a campus like Richmond American University London (1.1 miles north-west of Old Chiswick), facade and perimeter sealing has to fit around students and term dates. Hospital estates such as Charing Cross Hospital, 1.3 miles to the east of Old Chiswick, tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan.

Old Chiswick is about 2 miles south of Acton, in Greater London. If you’re looking for construction mastic in Old Chiswick, we can help. We work across 764 places in Greater London, from busy centres to rural villages. For work in that direction, see our London page.

Postcode districts covered here: W4, SW13 and W6. Streets here include Short Road, Quick Road and Paxton Road, and sites on any of them can send details for a fixed quote. Just outside Old Chiswick, we also work in Turnham Green (1 mile west), Chiswick (1 mile north-west), Grove Park (1 mile west), Barnes (1 mile south) and Hammersmith (1 mile north-east). Further afield, our area takes in London (7 miles east), City of Westminster (5 miles north-east), Marylebone (5 miles north-east), St Pancras (6 miles north-east), Shoreditch (8 miles east) and Walthamstow (12 miles north-east).

Local landmarks in Old Chiswick

We work on buildings around George and Devonshire pub, The Swedish School and Polish Library POSK in London, among other places. Also close by are Turnham Green (0.8 miles north-west) and Chiswick School (0.5 miles south-west). The closest station to Old Chiswick is Chiswick station, about 0.8 miles south-west. Well-known places in the area include Kurdish Museum Library and Archive (0.7 miles north-east) and West London Hospital (1.3 miles east). Green spaces nearby include Campden Hill and Kew Gardens Lake.

Map of Old Chiswick © OpenStreetMap contributors

Common questions from Old Chiswick clients

Is hospital work, at somewhere like Charing Cross Hospital, something you do?

Yes. Healthcare sites are among the places we work. Work is phased so departments keep running, under the site’s own rules.

Can you work around term dates at a campus such as Richmond American University London?

Yes, holiday working periods are the norm on campus jobs. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

What about RAMS and site documents?

Requirements differ from site to site, so tell us what you need and we will confirm it when we quote.

Do you do internal caulk as well as external mastic?

External and internal frame perimeters, caulking where it’s specified, sanitary silicone, kitchen joints and snagging before handover. We price to the specification and drawings.

Do you do fire-rated sealing on new builds?

Fire-rated sealant can be included where it’s specified, installed to the product’s tested detail. Fire-stopping design and sign-off sit with the designer and building control.

What accreditations do you hold?

Our applicators hold CSCS cards, and we’re CHAS accredited and a Constructionline member. Public liability insurance of five million pounds is in place too.

Do you take on multi-site work?

Yes. Multi-site work and planned programmes are a core part of the service, with each site phased to suit its occupants.

Commercial clients in Old Chiswick

Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Old Chiswick. Several sites can go on one quote, which keeps the paperwork simple.

Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.

Accreditations

Trusted. Accredited. Insured.