Greater London · England

Window & door mastic in Temple Bar, Greater London

Window mastic for Temple Bar, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Mastic that has split away from the wall
  • Rain getting in at the frame or under the sill
  • Old mastic that has gone black or come away

Window mastic near Temple Bar

How we handle window mastic in Temple Bar

Some gaps around frames are far deeper than they look. Filling it with sealant alone leaves a joint that cannot move properly, so deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. We work on timber windows & doors, composite doors and uPVC windows, and the jobs we see most are mastic that has split away from the wall and cracked sealant at the sill ends.

London homes have every kind of window, from timber sashes in period terraces to aluminium and uPVC in newer blocks. The mastic around them dries out and cracks with age, letting in draughts and water.

You are covered for a year from the day we finish. If anything is not right with it, ring 0345 464 0079 or email us.

Where
Temple Bar (WC2B, WC2E, EC1N)
Region
Greater London
Guarantee
12 months on all our work
Price
A clear price before we start
Call
0345 464 0079
Page updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

When something else is needed

In fairness, some problems need a different trade:

  • A frame that has rotted at the joint
  • Penetrating damp from a failed cavity tray or render
  • A failed sealed unit that has misted up

If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.

What we seal

  • uPVC windows
  • Aluminium frames
  • Window sills
  • Composite doors
  • Timber windows & doors
  • Patio & French doors

What affects the quote in Temple Bar

Every job gets its own quote. These are the things that affect it:

  • The size of the job
  • Working hours on commercial sites
  • Whether there’s mould to deal with
  • The number of rooms or windows

There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.

Asking for a quote

Photos help, but a description is a good start. Try to tell us:

  • The rough size of the job
  • Any previous sealing or DIY work
  • Access, such as stairs, a lift or height
  • The problem you’ve noticed

Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will take it from there.

Leave it or put it right?

Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It peels before long, and water still gets in behind. The old mastic has to come out. In a flat in Temple Bar, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.

No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.

Why us?

  • An ARBOMaster approved applicator
  • Colour picked to suit the job
  • Experience in homes, commercial sites and hotels
  • Full insurance on every job

See what affects the cost or our reviews.

FAQs for Temple Bar

Is Temple Bar in your area for window mastic?

Yes, Temple Bar is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.

Can parking be tricky for a visit in Temple Bar?

London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.

How do I get a quote for window mastic in Temple Bar?

Every job is different, so each one gets its own quote. To get one, phone 0345 464 0079 or send us an email with a short description of the job.

Can you do the inside joint as well?

Yes, we do both. Indoors, we seal between the frame and the plaster or reveal, using a paintable sealant if you want to decorate.

Should I try DIY first?

You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.

Can you work on commercial sites?

Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.

Are you insured?

Yes. Full insurance covers our work.

Do you work on first-floor windows?

Yes, as long as they can be reached safely. Tell us about access when you get in touch so we can plan the job.

How the visit works

Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a handful of frames, longer for a whole house. In Temple Bar, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.

  1. We check each frame and agree which ones need doing.
  2. The old mastic is cut out and the surfaces cleaned back.
  3. Where gaps are deep, backing rod goes in first.
  4. New exterior sealant goes on in a matching colour and is tooled smooth.
  5. Every joint is checked before we leave.

Preparing for the visit

  • Let us know if you’ve seen damp or leaks
  • Let us know about parking restrictions
  • Clear items away from the joints we’re working on

How to get a quote

To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.

Get a quick quote

Read more

Temple Bar homes and the weather

Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Dr Johnson's House (about 0.2 miles north-east) are a reminder that the area around Temple Bar has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.

Homes close to Temple Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For site and facilities teams at buildings such as St Clement Danes CofE Primary School, its window and door frames need their mastic kept sound, just like a home’s.

Temple Bar is about 1 mile south of St Pancras, in Greater London. Jobs in Temple Bar get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Temple Bar is one of 764 towns and villages in Greater London we cover.

Here we cover the WC2B, WC2E and EC1N postcode area for window mastic. That includes homes and businesses on Shoe Lane, Drury Lane and New Square and the roads around them. Main roads around Temple Bar include the A4 and A40, so getting to you is simple. If you’re just outside Temple Bar, we cover Temple (1 mile south), Clare Market (1 mile west), Aldwych (1 mile west), Blackfriars (1 mile east) and Covent Garden (1 mile west). Within a short drive, we also cover Kensington (4 miles west), Walthamstow (6 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Brompton (3 miles south-west) and Stockwell (3 miles south).

Near you in Temple Bar

Around Temple Bar, our work takes us to homes and buildings near British Library of Political and Economic Science, Mercers' School and London Nautical School and the streets around them. Other local landmarks include Lincoln's Inn Fields (within half a mile north-west) and Queen's Head Tavern (under half a mile north-east). There’s a railway station in Temple Bar itself: City Thameslink station. Well-known places in the area include Montfichet's Tower (0.5 miles east) and Twinings Museum (less than half a mile south-west). Green spaces nearby include Ludgate Hill and Barnsbury Wood.

Map of Temple Bar © OpenStreetMap contributors

What we’re called out for in Temple Bar

On timber frames, paint and putty build up around the joint. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.

These are the problems we’re asked about most:

  • Draughts coming in around windows and doors
  • Hard, cracked sealant around windows
  • Gaps left after new windows were fitted
  • Sealant in the wrong colour for the frame

Temple Bar is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.

Before you book anyone

  • Who does the work, and how experienced they are
  • Which sealant they’ll use, and why
  • The length of the guarantee
  • What the cure time is

10 questions to ask before booking

Surface by surface

Patio & French doors

Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that, where a rigid one would crack.

Timber windows & doors

Soft or rotten wood can’t be sealed successfully. We’ll point out any rot we find, as a joiner will need to deal with it.

Landlords, agents and businesses in Temple Bar

We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.

We work for landlords and letting agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job