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

Facade Sealing in Manor House

Commercial sealant work in Manor House for contractors, FMs and building owners: facade joint and window perimeter sealing on commercial buildings, with a fixed quote first.

  • New sealant peeling off old mastic
  • Draughts around frames and panels
  • Hard, chalky sealant that no longer flexes
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Facade sealing for businesses in Manor House

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

Facade sealing in Manor House, done properly

We are often asked to look at water coming in around frames. Failed perimeter sealant is a frequent cause. If the evidence points away from the sealant, we say so before quoting. If you are dealing with old perimeter mastic that has dried out and water coming in around window frames, we can put it right, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Manor House is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Every London site, Manor House included, is inside the ULEZ, which applies to deliveries and contractors’ vans alike. Add booked delivery slots and limited storage, and a London mastic package needs planning before the first bead.

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

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Manor House (N4, N16, N15)
Region
Greater London
Cover
12 months on every job
Price
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026

Site staff or a sealant 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 where general trades tend to cut corners.

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

On site: what to expect

When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before anything is cut or cleaned, with the work itself usually taking longer on a full elevation than on a handful of window perimeters, and it always depends on dry weather. Most London premises stay occupied while we are on site, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.

  1. Access, site rules and timing are settled with the client up front.
  2. We only seal when joints are dry and within the product’s temperature range.
  3. Each joint is cut out and the edges inspected.
  4. Joints are cleaned, primed if required and fitted with backing rod.
  5. Sealant is gunned in and tooled hard onto both faces.
  6. We hand over with our 12-month workmanship guarantee.

Before we start on site

  • Let us know about inductions and permits
  • Agree which areas must stay open
  • Tell staff and tenants when we’ll be in

Get a fixed quote

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or phone 01277 525 020 or email a schedule or drawings if you’d rather talk the job through.

Ask for a quote

Read more

Different surfaces, different methods

Cladding panel joints

Panel joints on cladding and rainscreen systems take movement every day. We use a product rated for the movement and suited to the panel surface, often a low-modulus silicone or hybrid.

Perimeter joints at frames and structure

Where framed systems such as shopfronts meet the building structure, there is a perimeter joint to seal. Our work is that perimeter joint rather than the system it surrounds.

When something else is needed

Some faults sit outside our scope, and we say so rather than covering them up:

  • Render or concrete edges that have broken away
  • Specialist high-level access methods
  • Work on the window or framing system itself

Not sure which it is? You can give us a call on 01277 525 020 or email us and we’ll tell you honestly.

Where we work in Manor House

  • Stone and brick facade joints
  • Shopfront frames
  • Window and door perimeters
  • Cladding panel joints
  • Perimeter joints where frames meet the structure
  • Coping and flashing joints

Quoting for work in Manor House

Sealant work doesn’t have a standard rate, since sites vary so much. What we take into account:

  • Access and working height
  • The product specified
  • Site requirements such as inductions and permits
  • How much existing material needs removing

A quote for facade joints depends on quantities, condition and access, and any specification that applies. Ask us for a fixed quote.

Details that help us quote

For an accurate fixed quote, we need a clear picture of the site. Send us:

  • Any specification or named product
  • A wide shot and a close-up of the area
  • Asbestos survey details if the building is older
  • The site address and postcode

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, ring 01277 525 020 or send photos by email.

Why it’s worth doing now in Manor House

Each spell of rain drives water past a failed facade joint. Behind the frame, that can mean damp plaster, stained ceilings, corroded fixings and damaged insulation. Resealing now costs less than repairing interiors later. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.

Why appoint us

  • Coloured sealants to suit the setting, where available
  • Old sealant cut out, never sealed over
  • Work to your specification and the manufacturer’s guidance
  • Health and safety: CHAS accredited

Read our cost guide or our accreditations and insurance.

Contractors’ notes for Manor House

The ULEZ covers the whole of Greater London, Manor House included, so site vehicles need to meet its standards or pay the daily charge. Add booked deliveries and tight storage, and the mastic package needs planning with the site team. A 2-mile radius around Manor House takes in a good number of hotels. When hotels extend or refit, the work is usually squeezed between peak periods, mastic included.

Recladding or extending a unit at a site like Arena Shopping Park, under half a mile north of Manor House, brings panel joints and frame perimeters into the programme. On a campus such as American University in London, 1.1 miles south-west of Manor House, new teaching buildings and residences are normally built and refurbished around the academic year. For a contractor working at a hospital such as St Ann's Hospital, 0.7 miles north-east of Manor House, perimeter and facade sealing is planned around patients and deliveries.

Manor House is about 1 mile north of Highbury, in Greater London. We cover commercial sites throughout Manor House. Manor House is one of 764 places we cover in Greater London for facade joints.

Anyone looking for facade sealing in N4, N16 and N15 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 Vale Road, Eade Road and Swan Lane or nearby, send details and we’ll quote for facade joints. Main routes into Manor House include the A503, which helps when planning parking and deliveries for the job. Nearby places we also cover include Harringay (1 mile north), St Ann's (1 mile north-east), Stoke Newington (1 mile south-east), Stamford Hill (1 mile east) and West Green (1 mile north). Nearby towns on our patch include London (5 miles south), City of Westminster (5 miles south-west), Marylebone (4 miles south-west), Kensington (7 miles south-west), St Pancras (3 miles south) and Shoreditch (3 miles south).

Around Manor House

Recent enquiries here include premises near Woodberry Down School, Beaconsfield pub and Chestnuts Park, among other places. Other local landmarks include Arts and Media School Islington (0.9 miles west) and Church of St Andrew (0.7 miles east). Manor House has its own railway station: Harringay Green Lanes station. Other landmarks nearby include Arsenal Football Club Museum (1.2 miles south-west) and Montfichet's Tower (4 miles south). Open spaces near Manor House include Woodberry Wetlands and Highgate Hill.

Map of Manor House © OpenStreetMap contributors

Questions about Manor House

Can you take on a job at a hospital such as St Ann's Hospital?

Yes, provided the work is planned with the site’s estates team. Work is phased so departments keep running, under the site’s own rules.

Can you work at a site such as Arena Shopping Park, by Manor House?

Yes. Our area takes in Manor House and its surroundings, with estates and business parks such as Arena Shopping Park included. Send details of the unit and the work through our quote form for a quick quote.

Can you look at water coming in around a frame?

Yes. We look at the perimeter sealant and tell you whether it has failed as part of pricing. If the water seems to come from a roof, sill or the glazing unit instead, we say so.

Do you replace windows or glass?

No. We don’t install glazing systems, windows or glass. We seal the joints around them, including perimeters where frames meet the structure.

Do you work to architects’ specifications?

Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.

Do you take on small jobs?

Single areas, one-off repairs and whole buildings are all quoted the same way: details, then a fixed price, then sealing, then a 12-month guarantee.

Which sealant do you use on facades?

Most facade and window perimeter joints take a low-modulus neutral-cure silicone. Some joints call for hybrid, PU or polysulphide instead, as the specification or substrate requires.

Accreditations

Trusted. Accredited. Insured.