Feltham construction mastic
Construction mastic in Feltham, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Sealant knocked or painted over by other trades
- Inconsistent sealant finishes from plot to plot
- New external sealant already peeling away
Construction mastic for Feltham sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Construction mastic in Feltham
Since 2005 we have 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 Feltham, send drawings through our quote form, or phone or email us to talk it through. We work on sanitary and kitchen joints, floor and skirting junctions and window and door perimeters, and the usual reasons a site gets in touch are old sealant on a refurbishment that needs stripping before new work and frame perimeters left unsealed or poorly sealed. Facilities teams, main contractors and managing agents in Feltham tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
Building sites in London tend to be tight: small compounds, delivery slots and shared hoists and scaffold. Mastic is usually one of the last trades on each elevation or floor, so we keep to the programme and the order of trades the site sets.
We stand by our work: 12 months, guaranteed. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.
- Location
- Feltham (TW14, TW13)
- Region
- Greater London
- Guarantee
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026
When to bring in a specialist
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Why deal with it now?
When a package runs over budget, downgrading the product is a common first thought. A failed joint in the defects period costs far more than the product difference, especially externally. We price the specified product and will tell you plainly where an alternative would or wouldn’t work. In Feltham, each extra visit means more notices, permits and disruption, so cutting the old sealant out fully and doing it right once is the better route.
Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
Why choose Mastic Doctor in Feltham
- A range of standard colours, depending on the product
- Fixed quotes based on photographs, drawings or a visit
- One contact handling all your sites
- Colour agreed before work starts
Take a look at how commercial sealant jobs are priced and how we’re accredited.
How the job changes by surface
Kitchens and utility areas
Kitchen joints are sealed after fitting and before final clean. A kitchen-suitable sealant is used, food-safe where food contact is possible.
Fire-rated sealant where specified
Fire-rated sealant forms part of some packages, installed to the product’s tested detail where it is specified. Fire stopping design belongs to the designer and building control and we install what’s specified.
From enquiry to sign-off
We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. Most London premises stay occupied while we are on site, so we agree zones and timings with the building or facilities manager. Phased work keeps the rest of the building in use.
- 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.
- Every joint is cleaned, set to depth and sealed with the specified product.
- Snags are cleared and the package signed off with our 12-month guarantee.
Before we start on site
- Let building users know which areas are affected
- Arrange parking or a loading space
- Clear stock, furniture or equipment away from the joints
Getting a fixed quote
Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.
Read more
Construction mastic around Feltham: points for this area
Site traffic in Feltham falls within London’s ULEZ, like everywhere else in Greater London. London sites also mean booked deliveries and limited storage, which the mastic programme has to allow for. The area within 2 miles of Feltham holds plenty of hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.
Projects at colleges like West Thames College - Skills Centre (0.9 miles east of Feltham) tend to run to term dates, so the mastic is planned tightly. University estates such as St Mary's University (to the east of Feltham) tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal. For a contractor at a hotel such as St Giles Hotel (under half a mile north-east of Feltham), the mastic often has to be finished before a reopening date.
Feltham is about 6 miles south-west of Ealing, in Greater London. Commercial clients in Feltham use us for work on mastic packages. We work across 764 places in Greater London, large and small. For work in that direction, see our London page.
We take on mastic packages across the TW14 and TW13 postcode area. Among the streets we cover are High Street, Railway Terrace and Sandycombe Road, and sites on any of them can send details for a fixed quote. You’ll find Feltham on or near the A244 and B377, so getting applicators and materials to site is simple. Nearby places we also cover include Bedfont (1 mile west), Hounslow (1 mile south-west), Hatton (1 mile north), Ashford Common (2 miles south-west) and Cranford (2 miles north). A short drive away, we cover London (14 miles east), City of Westminster (12 miles east), Marylebone (12 miles north-east), Kensington (10 miles east), St Pancras (14 miles north-east) and Shoreditch (15 miles east).
Local landmarks in Feltham
In Feltham, that means premises near Hounslow Heath, Moon On The Square pub and Rivers Academy West London and the streets around them. Feltham has its own railway station: Feltham station. Nearby you’ll also find Hounslow Hospital (2.3 miles north-east) and Kempton Steam Museum (1.6 miles south). For a walk, there’s Richmond Hill and Pevensey Road Nature Reserve.
Also in Feltham
Feltham: questions and answers
Do you cover business parks and estates near Feltham, such as Maple Industrial Estate?
Yes, sites like Maple Industrial Estate are within our area, along with the rest of Feltham. Photos and a short description are enough for a first look.
Do you work in London buildings with loading restrictions?
Yes, we plan every London job around the building’s own access rules. Say when the building is occupied and when it’s quiet, and we’ll plan accordingly. We allow for the ULEZ, which covers every borough
Can you come in just for snagging?
Yes. Send the snag list or photos and we’ll price it, with the work timed to your handover date.
When can the area be used after sealing?
Curing time varies by product, and we confirm it on the day.
Can you work while the building is occupied?
In most cases, yes. We phase the work so most of the building stays in use.
Is colour matching possible?
Often, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We’ll confirm the colours available for the specified product.
What’s the quickest route to a quote?
The quote form is the simplest route, though you can also phone 01277 525 020 or email drawings and photos. Photos, drawings or a joint schedule help us quote quickly.
Quoting for work in Feltham
We price every job individually. The things that drive the figure:
- Site requirements such as inductions and permits
- Whether old sealant has to be cut out first
- Phasing around occupants
- The total length or number of joints
The specified product makes a difference, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.
Before you send an enquiry
Diagnosis starts before we arrive. Let us know:
- Whether an asbestos survey exists
- A wide shot and a close-up of the area
- How the joints are reached, and at what height
- The type of building and who uses it
Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings that you can work with. If you have questions first, speak to us on 01277 525 020 or email us.
What we can’t put right
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Glazing units that are cracked or misted
- Frames fitted out of tolerance
- Joints damaged after sign-off by following trades
Not sure which it is? You can call the office on 01277 525 020 or email a schedule or drawings and we’ll tell you honestly before you book.
What we seal
- Floor and skirting junctions
- Cladding and panel joints
- Window and door perimeters
- Sanitary and kitchen joints
- Brick and block movement joints
- Internal decorators’ caulk