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

Mastic Sealing in Upper Edmonton

Mastic sealing for Upper Edmonton, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Movement joints with sealant missing
  • Complaints coming in block by block
  • Water getting in round frames after rain
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Mastic sealing for Upper Edmonton sites

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

From enquiry to sign-off

In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then handed back before we move to the next. In Upper Edmonton, most buildings stay in use during the work, so we agree zones and timings with the building or facilities manager. Phased work keeps the rest of the building in use.

  1. A building-by-building inspection lists the failed joints.
  2. You get a fixed quote, per block or for the whole programme.
  3. We agree the programme and dates with you.
  4. Failed sealant is removed and the faces prepared.
  5. New sealant goes in with backing rod and primer where needed.
  6. We check the finished work and confirm the guarantee.

Before we start on site

  • Send asbestos survey details if the building is pre-2000
  • Make sure the joints can be reached
  • Tell staff and tenants when we’ll be in

Getting a fixed quote

A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or give us a call on 01277 525 020 or email us if you’d rather talk the job through.

Get a quick quote

Related advice

Mastic sealing for commercial buildings in Upper Edmonton

Different joints need different sealants. Low-modulus neutral-cure silicone suits many window perimeters and external movement joints, and MS polymer sealants stick well to many substrates and often take paint. We’ll confirm the colours available for the specified product. Site teams most often ask us about complaints coming in block by block and draughts at frames across a block, across shopfronts below residential blocks, window and door perimeters on blocks and external wall and movement joints. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Upper Edmonton, preparation and product choice get the time they need.

For managing agents in Upper Edmonton, resident access, notice periods and the building’s rules shape the job. We work to the agent’s notice and access plan, so residents know what’s happening.

A 12-month guarantee applies to all our work in Greater London. Should something we installed fail, call 01277 525 020 or email us and we will come back to it.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Upper Edmonton (N18, N9, N17)
Region
Greater London
Cover
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026

Frames, entrances and external joints in Upper Edmonton

For a London block, the agent or landlord normally handles notices to residents and access to flats. Our programme follows the access you agree with residents. Four care or nursing homes sit less than 2 miles from Upper Edmonton. Frame mastic on care buildings is best renewed elevation by elevation, with the manager deciding timings.

Older community buildings, St Mary's Church among them, often have frames of mixed ages whose mastic varies. Site managers at schools like St John and St James CofE Primary School can fit frame mastic into the summer works. Student blocks close to universities like University of Portsmouth Walthamstow Campus (3 miles south-east of Upper Edmonton) are easiest to work on between tenancies.

Upper Edmonton is about 1 mile south of Edmonton, in Greater London. We cover commercial sites throughout Upper Edmonton, whether it’s a single job or part of a planned programme. Upper Edmonton is one of 764 places we cover in Greater London for mastic joints. For work in that direction, see our London page, about 8 miles away.

If you need mastic sealing in N18, N9 and N17, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Among the streets we cover are Bull Lane, Park Lane and York Road, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Northumberland Park (1 mile south-east), Edmonton (1 mile north), Picketts Lock (2 miles north-east), South Chingford (2 miles east) and Winchmore Hill (2 miles north-west). Further afield, our area takes in London (8 miles south), City of Westminster (8 miles south-west), Marylebone (8 miles south-west), Kensington (10 miles south-west), St Pancras (6 miles south) and Shoreditch (6 miles south).

Landmarks near Upper Edmonton

Locally, jobs take us to sites close to Pymmes Park, Tottenham University Technical College and London Academy of Excellence Tottenham and the streets around them. Upper Edmonton has its own railway station: Silver Street station. Other landmarks nearby include North Middlesex University Hospital (under half a mile west) and Broomfield House Museum (2.2 miles west). Not far away are Pole Hill and Highams Park Lake.

Map of Upper Edmonton © OpenStreetMap contributors

Upper Edmonton: questions and answers

Can you work in a London building with booked loading and goods-lift slots?

Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. Share the building’s contractor rules and we will work to them. We allow for the ULEZ, which covers every borough

Will you take on work at estates like Compass West Industrial Estate, close to Upper Edmonton?

Yes, sites like Compass West Industrial Estate are within our area, along with the rest of Upper Edmonton. Photos and a short description are enough for a first look.

What do you charge?

That depends on the job: quantities, access, the product and any phasing. Call for a fixed quote and we will price it properly.

Can weather delay the job?

It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.

Do you work with property factors and landlords?

Yes, that’s exactly who this service is for. We work through buildings in a planned order with dates agreed in advance.

Which sealant will you use?

Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Do you check for asbestos in old sealant?

Some mastics in pre-2000 buildings contain asbestos. We ask for the asbestos register or survey before work starts, and if it’s suspected, work stops until it’s tested.

Surface by surface

Tenement and older buildings

Natural stone can be marked by the wrong sealant, so we pick a grade that won’t mark it.

Estate-wide resealing programmes

Housing associations and agents often manage many similar blocks. Each block is priced and scheduled in order.

Building owners, agents and FMs in Upper Edmonton

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

Whether you’re 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.

Honest limits

Honesty saves time and money. Fresh joints won’t solve:

  • Broken glass or failed sealed units
  • Water coming in from the roof or rainwater goods
  • Frames that are rotten, warped or broken

If in doubt, phone 01277 525 020 or send details through our quote form and we’ll say what we think before you book.

Surfaces we seal

  • External wall and movement joints
  • Communal entrances and stairwells
  • Shopfronts below residential blocks
  • Window and door perimeters on blocks
  • Balcony and threshold joints
  • Communal kitchens and washrooms

Doing it in-house

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong normally costs more in the end than doing them right.

Why it’s worth doing now in Upper Edmonton

Piecemeal repairs over the years often leave mismatched sealant. A block-wide reseal gives one product, one colour and one guarantee. In a London building, a failed joint rarely affects only one party. Dealing with it early is simpler for everyone.

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.

Why choose Mastic Doctor in Upper Edmonton

  • Public liability insurance in place
  • Sealing commercial buildings since 2005
  • CHAS accredited
  • Standard and matched colours in many product ranges

Take a look at how commercial sealant jobs are priced or our accreditations.

Accreditations

Trusted. Accredited. Insured.