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

Construction and new-build mastic in Perivale, Greater London

Need construction mastic in Perivale? It’s simple: send details, get a quote, we seal, guaranteed.

  • A long mastic snag list close to completion
  • Perimeter gaps outside the sealant’s range
  • Bath and shower joints scraped during the final clean
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Construction mastic for businesses in Perivale

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Site staff or a sealant specialist?

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

Construction mastic for commercial buildings in Perivale

Refurbishment work needs a slightly different approach from new build. Old beads come out completely, as fresh silicone can’t grip old and the asbestos survey is checked first on older stock. After that, the joints are prepared and sealed to the specification. We work on internal decorators’ caulk, window and door perimeters and sanitary and kitchen joints, and the failures we are asked to look at most are perimeter gaps outside the sealant’s range and bath and shower joints scraped during the final clean. Whoever orders the work in Perivale, the brief is typically the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

The ULEZ covers the whole of Greater London, so contractors’ vehicles on a job in Perivale must meet its standards or pay the daily charge. Alongside that, sites normally need booked deliveries and a plan for where materials go.

Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

Place
Perivale (UB6, HA0, W5)
Wider area
Greater London
Guarantee
A 12-month guarantee
Price
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

What we’re called out for in Perivale

Three-sided adhesion is a frequent fault on new work. Bonded to the base of the joint and both sides, sealant can’t stretch evenly so we set the depth properly before sealing.

Typical triggers for a call:

  • External joints sealed in damp or cold conditions that are now failing
  • Old sealant on a refurbishment that needs stripping before new work
  • Different trades sealing to different standards
  • Perimeter gaps outside the sealant’s range

When a college such as Alexander Cromwell College, 0.8 miles to the east of Perivale, builds or refurbishes, the mastic package usually has to fit around students and staff.

Questions to ask before you book

  • How they handle RAMS and site documents
  • Is the sealant right for the movement and the substrate?
  • Proof of insurance
  • What the guarantee covers, and for how long

Questions to ask before you appoint anyone

Sites and facades in and around Perivale

The ULEZ covers the whole of Greater London, Perivale included, so site vehicles need to meet its standards or pay the daily charge. London sites also mean booked deliveries and limited storage, which the mastic programme has to allow for. There are a good number of hotels within about 2 miles of Perivale. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.

New wings at hospitals like Cygnet Hospital Ealing, 1.5 miles to the south-east of Perivale, bring long runs of window and panel joints to seal. University estates such as University of West London, 1.9 miles to the south of Perivale, tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal.

Perivale is about 1 mile east of Greenford, in Greater London. Looking for construction mastic in Perivale? We can help, as we do across Greater London. 764 places across Greater London fall within our area, Perivale among them. London is covered too, around 10 miles from Perivale.

We take on mastic packages across the UB6, HA0 and W5 postcode area. Streets here include Lee Road, Wicket Road and Bilton Road, and sites on any of them can send details for a fixed quote. If your building is just outside Perivale, we cover Pitshanger (1 mile south), Brentham Garden Suburb (1 mile south-east), Sudbury Hill (1 mile north), Sudbury (1 mile north) and Greenford (1 mile west). A short drive away, we cover London (10 miles east), City of Westminster (7 miles east), Marylebone (8 miles east), Kensington (6 miles south-east), St Pancras (9 miles east) and Shoreditch (10 miles east).

Landmarks near Perivale

Locally, jobs take us to sites close to Alperton Community School, Castle Bar Park and Brentham Clubhouse pub. The nearest railway station is South Greenford station, about 0.8 miles south-west of the centre. Other landmarks nearby include London Transport Museum Depot (2.8 miles south-east) and London Designer Outlet (1.9 miles north-east). The countryside around Perivale includes Middle Lake and Castlebar Hill.

Map of Perivale © OpenStreetMap contributors

Diagnose, treat, sign off

We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. All of Greater London is in the ULEZ, and kerbside space in Perivale can be scarce. Let us know about any on-site parking or loading arrangements when you send the job details.

  1. First we look at the scope on site or from drawings.
  2. A fixed quote sets out scope, products and phasing.
  3. Paperwork is agreed and applicators are inducted on site.
  4. Sealing follows the programme as areas are released.
  5. Any frame gaps or issues outside our scope are flagged to the site team.
  6. The package is closed out, snags cleared and backed by our 12-month guarantee.

Before we start on site

  • Clear stock, furniture or equipment away from the joints
  • Point out any areas we must not close
  • Explain the parking and delivery arrangements

Get a fixed quote

Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, call 01277 525 020 or email the details over.

Get a quick quote

Read more

Owners, agents and contractors

Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first.

Your questions answered

Is a hospital such as Cygnet Hospital Ealing somewhere you can work?

Yes, provided the work is planned with the site’s estates team. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Do you cover business parks and estates near Perivale, such as Phoenix Trading Estate?

Yes. Our area takes in Perivale and its surroundings, with estates and business parks such as Phoenix Trading Estate included. Send details of the unit and the work through our quote form for a quick quote.

How do you work with the site programme?

The programme sets the job. Tell us the sequence and we will plan applicators around it.

How do I request a quote?

There are four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photographs and a postcode.

Can you handle several sites?

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

Do you offer coloured sealant?

That depends on the product. Some ranges offer many colours, others very few, so we will confirm the colours available for the specified product with the quote.

Are you insured?

Yes. Our insurance certificate can be sent alongside the quote.

Surface by surface

Snagging before handover

The last pass before handover is where mastic snags are cleared. Snags are cleared room by room, cutting out damaged joints and resealing them properly.

Bathrooms, en suites and washrooms

In bathrooms and washrooms, an anti-mould sanitary silicone goes around every fitting. Joints are cleaned, sealed and tooled neatly and baths are loaded where appropriate before sealing.

Why it’s worth doing now in Perivale

Clearing snags piecemeal is tempting when handover is close. A planned sweep of each plot or floor catches the lot in one go, and avoids repeated visits. Snagging can be priced as a separate stage. In a London building, a failed joint rarely affects only one party: water travels through shared structures, and a small leak becomes a dispute between occupiers. Putting it right early is less disruptive than dealing with the consequences.

What a job costs comes down to how many linear metres there are, how much old material needs removing and the access. Call for a quote once you have the details.

Why choose Mastic Doctor in Perivale

  • Constructionline member for supplier checks
  • Health and safety: CHAS accredited
  • Fully insured
  • Joints cleaned back to sound surfaces

Take a look at what affects the cost or our accreditations and insurance.

Accreditations

Trusted. Accredited. Insured.