Mastic contractors in Silvertown
Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in Silvertown. Send photographs or drawings for a fixed quote.
- Snag items on joints that need redoing before handover
- Different trades sealing to different standards
- Old sealant on a refurbishment that needs stripping before new work
Construction mastic across Silvertown
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How we handle construction mastic in Silvertown
Mastic follows everyone else, which means it absorbs every delay upstream. We agree a sequence at the start and adjust it as the site manager releases areas. Sealing too early only means coming back once others have damaged it. We work on sanitary and kitchen joints, cladding and panel joints and brick and block movement joints, and what we are called in for most is perimeter gaps outside the sealant’s range and early adhesion failures on new external joints. Facilities teams, main contractors and managing agents in Silvertown tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Building sites in London tend to be tight: limited storage, booked deliveries and access shared with other trades. 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.
Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.
- Place
- Silvertown (E16, SE10, SE7)
- Wider area
- Greater London
- Guarantee
- 12 months on our workmanship
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Our process
Tell us your site hours and access windows and we will plan around them. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. For a job in Silvertown, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we’ll schedule to suit.
- First we look at the scope on site or from drawings.
- A fixed quote sets out scope, products and phasing.
- Paperwork is agreed and applicators are inducted on site.
- We seal plot by plot or floor by floor in line with the programme.
- Any frame gaps or issues outside our scope are flagged to the site team.
- The package is closed out, snags cleared and backed by our 12-month guarantee.
What we need from you
- Arrange parking or a loading space
- Flag any permit to work we’ll need
- Share your working hours and any access restrictions
Request a quote
Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. The easiest way is to phone 01277 525 020 or send details through our quote form.
Related advice
Building and refurbishing in Silvertown
The area within 2 miles of Silvertown holds plenty of hotels. Hotel extensions and refits normally have to fit around bookings, so mastic dates are tight. As part of Greater London, Silvertown is inside the ULEZ, which applies to every van on site. Deliveries are booked and storage is tight, so mastic materials come in as needed.
Work at a hotel such as Sunborn Hotel, 0.5 miles north-west of Silvertown, tends to be programmed around bookings, mastic included. Units on estates such as Greenshields Industrial Estate, under half a mile to the west of Silvertown, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal. Hospital estates such as Newham University Hospital (to the north of Silvertown) 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.
Silvertown is about 1 mile south of Canning Town, in Greater London. Businesses, contractors and managing agents in Silvertown use us for work on mastic packages. Silvertown is one of 764 places in Greater London on our list.
We take on mastic packages across the E16, SE10 and SE7 postcode area, for business premises of every kind. Streets here include Booth Road, Thames Road and Knights Road, and sites on any of them can send details for a fixed quote. Close to Silvertown, our area also takes in West Silvertown (1 mile north-west), Custom House (1 mile north), Royal Docks (1 mile north-east), Canning Town (1 mile north) and Limmo Peninsula (1 mile north-west). Further afield, our area takes in London (5 miles west), City of Westminster (8 miles west), Marylebone (8 miles west), Kensington (10 miles west), St Pancras (7 miles west) and Shoreditch (5 miles west).
Local landmarks in Silvertown
Locally, jobs take us to sites close to Anchor & Hope pub, Thames Barrier Park and The Royal Docks Community School, among other places. The nearest railway station is Custom House station, roughly 0.7 miles north. A little further out are Charlton Athletic Museum (1 mile south) and Gallions Reach Shopping Park (2.3 miles east). Open spaces near Silvertown include Tower Hill and Gilbert's Pit.
Aftercare for building managers
Keep the joints in good shape with a few simple steps:
- Note which sealant went where at handover
- Check frame gaps are within the sealant’s range before sealing
- Share drawings and the specification as soon as possible
- Put any product change through the designer first
Brief the sparkle clean so they don’t scrape the new joints. Scrapers used on frames and worktops can nick or lift a new bead so keep them off the joints.
In wet areas, a weak sanitary joint shows up quickly once the building is occupied. Leaks behind showers and basins damage finishes and floors, and the repair falls into the defects period. Getting the product and preparation right first time avoids that.
What affects the price in Silvertown
The price varies from site to site. Expect it to depend on:
- Travel to remote or island sites
- How accessible the joints are
- How much there is to seal
- The size and state of each joint
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you will have a fixed figure to work with.
What to include in your enquiry
A few photographs plus some basic facts will normally do. Please tell us:
- What the building is and how it’s used
- Any dates the work must fit around
- Drawings or a marked-up plan, if available
- How the joints are reached, and at what height
A good quote starts with a clear picture: 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.
General trades versus a specialist
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Redoing a failed joint normally costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
How the job changes by surface
Snagging before handover
Snagging is often the final mastic stage. We can work through the snag list area by area.
External facade and movement joints
Many facade substrates need a primer before sealing. Primer goes on where the sealant maker calls for it and work only when conditions suit.
Why it’s worth doing now in Silvertown
Refurbishments sometimes budget for new windows when the frames are sound and only the seal has failed. If the frame is in good order, cutting out and resealing the perimeter can be all it needs, which is a much smaller cost. If the frame is life-expired, we’ll tell you. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we’ll explain how it’s made up.
Why appoint us
- Coloured sealants to suit the setting, where available
- Work to your specification and the manufacturer’s guidance
- Failed material removed, not covered up
- Fixed quotes based on photos, drawings or a visit
See our cost guide and our accreditations.
Places near Silvertown
What else we do in Silvertown
Your questions answered
Is a hospital such as Newham University Hospital somewhere you can work?
Yes. We work in healthcare settings as well as offices and schools. Each area is agreed with the ward or department and the estates team in advance.
Can work at a site such as Ravensbourne University London fit around teaching?
Yes, holiday working periods are the norm on campus jobs. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Do you do fire-rated sealing on new builds?
Fire-rated sealing at service penetrations and linear gaps can be included where specified. Record requirements are confirmed at quote stage.
Does weather affect external mastic work?
Conditions have to suit the product before external work starts. Sealing in poor conditions risks adhesion failure, so we wait rather than redo work.
Are you fully insured?
Yes. Mastic Doctor is fully insured, public liability included.
How long do sealant joints last?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
How soon can the area be used again?
The product and site conditions decide that. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.