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

Construction and new-build mastic in Hackney Wick, Greater London

Mastic packages for new-build and refurbishment projects in Hackney Wick. CHAS accredited and fully insured, with a 12-month guarantee.

  • Cracks opening in caulked internal joints
  • Bath and shower joints scraped during the final clean
  • Existing joints on a refurb that need cutting out and resealing
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
£5m public liability

Construction mastic for Hackney Wick sites

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

What we are called out for in Hackney Wick

Frames installed with uneven gaps make perimeter sealing harder. Sealant has a range of joint widths it can cope with. Better to raise it at the start than seal a joint that’s bound to fail.

Common reasons buildings call us in:

  • Bath and shower joints scraped during the final clean
  • Failed sealant in an existing building being refurbished
  • Frame perimeters left unsealed or poorly sealed
  • Snag items on joints that need redoing before handover

For contractors refurbishing units at places like Hamlet Industrial Estate, less than half a mile north-east of Hackney Wick, the mastic covers cladding panels, roller-door and window perimeters.

Comparing quotes

  • Is the sealant right for the movement and the substrate?
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Who will actually carry out the work
  • Their public liability cover

Questions to ask before you appoint anyone

Construction mastic for commercial buildings in Hackney Wick

Mastic tends to be one of the final packages before handover. Mastic Doctor takes on mastic packages for main contractors and developers. We work on floor and skirting junctions, brick and block movement joints and window and door perimeters, and the failures we are asked to look at most are external joints sealed in damp or cold conditions that are now failing and frame perimeters left unsealed or poorly sealed. A single leaking joint is often how a building in Hackney Wick 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.

Construction in a London area such as Hackney Wick means working on constrained sites: limited storage, booked deliveries and access shared with other trades. We fit around the programme, sealing each elevation or floor as other trades hand over.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Place
Hackney Wick (E3, E9, E20)
Wider area
Greater London
Guarantee
12 months on every job
Price
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

How the quote is worked out

We price every job individually. The main factors are:

  • Backing rod, priming and other preparation
  • Removal of failed or old sealant
  • Induction, permit and paperwork requirements
  • Which sealant the job calls for

A quote for mastic packages depends on quantities, condition and access. Ask us for a fixed quote.

What we need to price the job

However big the job, these details speed things up:

  • Whether the building will be occupied during the work
  • Anything awkward about access or site hours
  • Rough lengths or quantities, or drawings if you have them
  • Specification clauses that apply

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.

Why deal with it now?

Leaving mastic to whichever trade is fitting the element can look cheaper on paper. In practice it often means different standards, gaps in responsibility and snags nobody owns. One mastic subcontractor for the lot keeps it simple and a consistent finish. Repeat call-outs disrupt occupied London buildings, so a proper job first time, with the old sealant fully removed, is worth it.

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.

Why choose Mastic Doctor in Hackney Wick

  • Colours chosen to suit frames, cladding or finishes where possible
  • Work to your specification and the manufacturer’s guidance
  • Constructionline member for supplier checks
  • Fixed quotes based on photos, drawings or a visit

Take a look at our cost guide or how we’re accredited.

Your questions answered

Can you work at a site such as Hamlet Industrial Estate, by Hackney Wick?

Yes. We cover Hackney Wick and the area around it, including industrial estates, business parks and retail parks such as Hamlet Industrial Estate. Photos and a short description are enough for a first look.

Could you schedule work at a campus like University of Staffordshire London Campus for the vacation?

Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

How long does a typical visit take?

It depends on the scope, though a typical visit usually takes whatever the programme allows, since the work follows the trades as areas are released. For bigger or phased jobs, we’ll set out a timescale with the quote.

Are you insured?

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

Does the weather affect the work?

Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

What happens if the weather stops external sealing?

Outside, the joint has to be dry and the temperature within the product’s limits. Frosty or damp mornings can hold up external sealing so we typically switch to internal work when that happens.

Do you work to architects’ specifications?

Yes. We follow the specification, along with the manufacturer’s installation guidance.

How the job changes by surface

Window and door perimeters

Perimeter joints between frames and the structure are the weather line on any new building. We use the specified perimeter sealant, normally a low-modulus neutral-cure silicone, with backing rod in deeper gaps.

Kitchens and utility areas

Commercial kitchens often need hygienic or food-safe sealants. Joints are sealed smooth so they’re easy to clean.

Keeping the joints sound

Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. We suggest:

  • Release areas for mastic once other trades have finished in them
  • Get the mastic subcontractor involved early in the programme
  • Keep finished joints away from paint, plaster and scrapers
  • Record the products used in the O&M file

Expect some settlement in the first months. The right product in each joint copes with that. We can advise if a joint needs a different product.

Sealing outside when the joint is damp or too cold leads to poor adhesion. Waiting for a dry joint and the right temperature is better than redoing work, so we plan external work with that in mind.

Construction mastic in Hackney Wick: the local picture

Hackney Wick has a good number of hotels close by, all within 2 miles. Hotel extensions and refits usually have to fit around bookings, so mastic dates are tight. Site traffic in Hackney Wick 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.

Hotel extensions and refits, at places such as The Stratford Hotel, 0.7 miles to the east of Hackney Wick, normally run between busy periods, so the sealing is squeezed into short windows. Further education sites such as International College of Musical Theatre (to the north-west of Hackney Wick) are extended and refurbished from time to time, with mastic often programmed into the summer break.

Hackney Wick is about 1 mile west of Stratford, in Greater London. We cover commercial sites throughout Hackney Wick, for single jobs and planned programmes alike. Hackney Wick is one of 764 places we cover in Greater London for mastic packages.

Anyone looking for construction mastic in E3, E9 and E20 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. For a building on Wick Lane, Dace Road and Wyke Road or nearby, we can quote for mastic packages. If your building is just outside Hackney Wick, we cover Fish Island (1 mile south), Donnybrook Quarter (1 mile south-west), Old Ford (1 mile south), Temple Mills (1 mile north-east) and East Village (1 mile north-east). Nearby towns on our patch include London (4 miles south-west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (4 miles west) and Shoreditch (3 miles south-west).

What’s near Hackney Wick

Locally, jobs take us to sites close to Mulberry UTC, Mabley Green and Mulberry UTC, among other places. Hackney Wick has its own railway station: Hackney Wick station. Other landmarks nearby include Tower of London (3.3 miles south-west) and V&A East (under half a mile east). Open spaces near Hackney Wick include Tower Hill and Old Ford Island.

Map of Hackney Wick © OpenStreetMap contributors

How a job runs

On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, and the work usually takes as long as the agreed sequence needs, which comes down to joint lengths, access and handover dates. All of Greater London is in the ULEZ, and kerbside space in Hackney Wick 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. You receive a fixed quote covering scope, products and sequence.
  3. Site paperwork is confirmed and our CSCS-carded applicators are inducted.
  4. We seal plot by plot or floor by floor in line with the programme.
  5. Problems we find, such as oversized gaps, are raised right away.
  6. Final snagging is completed and the 12-month guarantee applies.

Getting the site ready

  • Send any specification or drawings in advance
  • Let us know about inductions and permits
  • Agree which areas must stay open

Quotes

Send us photos, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.

Ask for a quote

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