Mastic sealant contractors in Aldwych
Mastic sealing for building owners, managing agents and housing associations in Aldwych and across Greater London. CHAS accredited and fully insured, with a 12-month guarantee.
- Water getting in round frames after rain
- Window mastic that has split and shrunk
- Repeated reactive repairs to the same buildings
Need mastic sealing in Aldwych?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
When to call us in Aldwych
Communal entrances and corridors see a lot of wear, with joints near the floor and around doors suffering most. Regular cleaning wears them further.
Site and facilities staff are often the first to spot these:
- No planned programme for sealant
- Movement joints with sealant missing
- Patchy repairs in mismatched sealant
- Occupiers reporting cold air round windows
If you are responsible for a building such as St Mary le Strand, frame and door mastic needs the same attention as any other property.
What to look for in a quote
- Are they CHAS accredited or on Constructionline?
- How joint depth will be controlled
- The terms of the workmanship guarantee
- Their public liability cover
Mastic sealing in Aldwych
For over 20 years we have resealed joints for owners, agents and landlords. Every applicator holds a CSCS card and we hold public liability insurance. Resealed mastic joints in Aldwych carry our 12-month guarantee. The enquiries we see most involve old repairs sealed over failed mastic and window mastic that has split and shrunk, on window and door perimeters on blocks, communal entrances and stairwells and shopfronts below residential blocks. One point of contact handles commercial sealant work in Aldwych from the first photographs to the final walk-round, for single jobs and planned programmes alike.
Across Greater London, Aldwych included, the ULEZ applies, and parking and loading rules differ from street to street. For a block or estate, it helps to know where we can park and stage materials.
We sign every job off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.
- Place
- Aldwych (W1D, WC2H, W1F)
- Wider area
- Greater London
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Towns and villages near Aldwych
Other services in Aldwych
Your questions answered
Can you cope with the access rules in a London building?
Yes. Inductions, permits and timed loading are routine for us in London. The building manager’s rules go straight into our method. All of Greater London is inside the ULEZ, and our planning allows for it
Can you quote for a block close to London Charing Cross station?
Yes, we work for agents, landlords and housing associations with blocks of every size. Photos of each elevation help us quote accurately.
Do you work in Aldwych?
Yes. We take on work across Aldwych, and the same phone number covers every area.
Do you work for managing agents and housing associations?
Yes, that’s exactly who this service is for. We work through buildings in a planned order with dates agreed in advance.
How do you reach windows on upper floors?
We talk through access for each building when we quote. Tell us the building height and any access already in place, and we will tell you how we’d approach it.
Do you seal on top of existing sealant?
No, never. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
How many days will you need on site?
The duration is planned around your programme and the access we are given. You will have an expected duration with the quote.
Why deal with it now?
A bead run over old mastic can look like a repair. It won’t grip the old sealant and soon comes away. Full removal and proper preparation is what lasts. Repeat call-outs disrupt occupied London buildings, so cutting the old sealant out fully and doing it right once is the better route.
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
Why choose Mastic Doctor in Aldwych
- Constructionline member
- Public liability insurance in place
- Products installed to the manufacturer’s instructions
- Failed material removed, not covered up
Read how commercial sealant jobs are priced or our accreditations and insurance.
Honest limits
Sealant solves a lot, but not everything, and we’re upfront when that’s the case. These need a different solution:
- Failed window or door frames, which need a window contractor
- Masonry that has broken away beside the joint
- Leaks from above rather than through a joint
If in doubt, give us a call on 01277 525 020 or use the quote form and we will say what we think.
Joints and surfaces we work on
- External wall and movement joints
- Balcony and threshold joints
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- Communal entrances and stairwells
Our process
Working in a building that stays open takes some planning. We sign and contain the area we are in, with routes through the building left open and work section by section so the rest of the building stays in use. All of Greater London is in the ULEZ, and kerbside space in Aldwych can be scarce. Let us know about any on-site parking or loading arrangements when you send the job details.
- We inspect the joints, building by building, and record what has failed and why.
- A fixed quote follows, split by block or building if that suits you.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- Old sealant is stripped and each face prepared back to firm material.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
What we need from you
- Confirm the product named in the specification
- Let us know about inductions and permits
- Explain the parking and delivery arrangements
Ask for a quote
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, ring 01277 525 020 or send photos by email.
Advice
How the quote is worked out
The price varies from site to site. It mainly depends on:
- Which sealant the job calls for
- Joint width, depth and condition
- How accessible the joints are
- How much there is to seal
The product called for affects the cost, 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.
What we need to price the job
Diagnosis starts before we arrive. Let us know:
- Your programme or deadline
- Whether the building will be occupied during the work
- The site address and postcode
- How the joints are reached, and at what height
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 send photos by email if you’d rather talk the job through.
Work for main contractors and building owners
For main contractors, we work as the sealant subcontractor. Programme, specification and site rules come first.
Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.
Block-wide mastic in Aldwych
Blocks in London are typically run by managing agents, landlords or housing associations, with residents to notify and access to arrange. Our programme follows the access you agree with residents.
If you manage student housing near a university such as King's College London (under half a mile east of Aldwych), the summer turnaround is the time for mastic. Landlords with units on estates such as Grand Vitesse Industrial Estate (to the south-east of Aldwych) can bring frame, door and external mastic across several units into one programme.
Aldwych is about 1 mile north-west of London, in Greater London. Our applicators travel to Aldwych for work on mastic joints. Aldwych is one of 764 places we cover in Greater London.
Business premises anywhere in W1D, WC2H and W1F are within our area for mastic joints. Buildings on Shoe Lane, Drury Lane and New Square are within our area for mastic joints. Aldwych sits on or close to the A4 and A301. We also cover Clare Market (1 mile north), Covent Garden (1 mile west), Temple Bar (1 mile east), Temple (1 mile east) and Adelphi (1 mile south-west). Bigger towns within reach include Kensington (4 miles west), Walthamstow (6 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).
Landmarks near Aldwych
In Aldwych, that means premises near Ye Old White Horse pub, Lincoln's Inn Fields and Mercers' School and the streets around them. Other local landmarks include LSE Shaw Library (less than half a mile north-east) and London Nautical School (0.6 miles south-east). The nearest railway station is London Charing Cross station, about 0.5 miles south-west of the centre. A little further out are Montfichet's Tower (0.7 miles east) and Gabriel's Wharf (0.5 miles south-east). Green spaces nearby include Barnsbury Wood and Ludgate Hill.