The Mastic Doctor team standing beside their branded vans outside an office building
East Sussex · England

Facade Sealing contractors in Duddleswell

Facade joint and window perimeter sealing on commercial buildings across Duddleswell, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Water coming in around window frames
  • Hard, chalky sealant that no longer flexes
  • New sealant peeling off old mastic
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS accredited
£5m PL insurance

Facade sealing across Duddleswell

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

How we handle facade sealing in Duddleswell

Water ingress at window frames is a frequent reason facilities managers contact us. Failed perimeter sealant is a frequent cause, though that isn’t the only cause. We will tell you if we think the leak is coming from somewhere sealant won’t fix. The enquiries we see most involve patch repairs that keep failing and hard, chalky sealant that no longer flexes, on stone and brick facade joints, shopfront frames and coping and flashing joints. For commercial sealant work in Duddleswell, you deal with one contact from quote to sign-off, whether it’s one building or several.

Conversions of older rural buildings near smaller places such as Duddleswell bring stone, flint, brick and timber up against new glazing. A product that grips an irregular face, with a colour that suits the building’s character, is normally what’s needed.

Our workmanship is guaranteed for 12 months, wherever the site is. If our installation lets you down in that time, we return and fix it.

Where
Duddleswell (TN22)
Region
East Sussex
Cover
12 months on every job
Quote
Fixed quote, scope in writing
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Diagnose, treat, sign off

We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. For work around Duddleswell, we aim to finish in one visit, so photographs and measurements up front really help. That way the right products come on the day.

  1. First we review photos, drawings or what we saw on a visit, and agree how each joint will be reached.
  2. The old bead is cut away completely, not overlaid.
  3. Both faces are cleaned and, where the product needs it, primed.
  4. Backing rod, or bond-breaker tape in shallow joints, limits the depth.
  5. A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
  6. The completed runs are checked with you, then the 12-month guarantee applies.

Preparing the site

  • Tell us which areas need to stay in use
  • Make sure the joints can be reached
  • Explain the parking and delivery arrangements

Quotes

A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or call the office on 01277 525 020 or send details through our quote form if you’d rather talk the job through.

Get a quick quote

Advice

What sealant work can’t fix

Some faults sit outside our scope, and we point that out rather than sealing over them:

  • Damaged frames that need replacing
  • Movement beyond what any sealant can handle
  • Installing or repairing glazing systems

If you are not sure, just phone 01277 525 020 or email us and we will give you a straight answer.

Surfaces we seal

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

For managing agents and facilities managers

We work for building owners and managing agents on everything from one building to a spread of sites. One quote can cover more than one site, which keeps the paperwork simple.

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.

Common questions from Duddleswell clients

Is Duddleswell too small for you to travel to?

No. Small places get the same service as large ones. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.

Will you fit the mastic around our build programme in Duddleswell?

Yes. The mastic is planned around your key stages. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Do you run new sealant over the existing bead?

No. New sealant won’t hold on old sealant, so the old bead is cut away. That is what makes the new joint last.

What hours do you work?

Mention the site’s hours and access windows in your enquiry, and we will schedule the work to suit. Our office runs Monday to Friday, 8am until 5pm.

Is any job too small?

Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.

Is it fine to apply new sealant on top of old?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

Can weather delay the job?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

Quoting for work in Duddleswell

The price varies from site to site. It mainly depends on:

  • Specialist products, such as fire-rated or hygienic sealants
  • Induction, permit and paperwork requirements
  • Distance, for remote addresses
  • How accessible the joints are

The price depends on the quantity of joints, how much old material needs removing and the access. Call for a quote when you’re ready.

What to include in your enquiry

To price the job accurately, we need to understand the site. Useful things to include:

  • How the joints are reached, and at what height
  • The product your specification calls for
  • Any dates the work must fit around
  • Rough lengths or quantities, or drawings if you have them

Let us know the site, the scope and your timescale, and we will put a fixed quote together. The easiest way is to call 01277 525 020 or send photos by email.

Do you need facade sealing in Duddleswell?

The wrong product causes its share of trouble: acetoxy-cure silicone may mark stone or corrode certain metals, and an interior product won’t last outdoors. Neutral-cure, facade-grade products are what most external joints need.

Things that normally lead to an enquiry:

  • Draughts around frames and panels
  • Hard, chalky sealant that no longer flexes
  • Failed sealant on precast panel joints
  • Leaks at window and door perimeters

On any site in or around Duddleswell, the mastic follows the specification and the programme.

Before you book anyone

  • Their public liability cover
  • Are they CHAS accredited or on Constructionline?
  • Do they follow the manufacturer’s priming guidance?
  • The terms of the workmanship guarantee

Our contractor checklist

Facades, frames and programmes in Duddleswell

Duddleswell is in the South East, one of the UK’s drier regions. Winter mornings still bring frost and condensation on frames and panels, which is why external dates are agreed with the site manager. Duddleswell lies roughly 33 miles out from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, so mastic packages have to keep pace with busy programmes.

New wings at hospitals like Crowborough War Memorial Hospital (to the east of Duddleswell) bring long runs of window and panel joints to seal.

Duddleswell is about 3 miles west of Crowborough, in East Sussex. Anywhere in TN22, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. We work across 308 places in East Sussex, large and small. For work in that direction, see our Brighton page (17 miles or so).

Work on facade joints is covered throughout TN22, for business premises of every kind. Nearby places we also cover include Nutley (2 miles west), Horney Common (2 miles south), Chelwood Gate (3 miles west), Chelwood Common (3 miles west) and Wych Cross (3 miles north-west). Further afield, our area takes in Lewes (12 miles south), Hailsham (14 miles south-east), Crowborough (3 miles east), Uckfield (5 miles south), South Malling (12 miles south) and Heathfield (9 miles south-east).

What’s near Duddleswell

For rail, the closest station is Buxted station, about 3.8 miles south-east of the centre. A little further out are Crowborough War Memorial Hospital (3 miles east). Not far away are Brickfield Meadow.

Map of Duddleswell © OpenStreetMap contributors

Leave it or put it right?

Scaffold or access already on site makes resealing much simpler. Coordinating facade sealing with other external works avoids paying for access twice. Converted and older buildings near places like Duddleswell tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you will have a fixed figure to work with.

Why us?

  • Fully insured, including public liability cover
  • Colour options checked against the specified product
  • A range of standard colours, depending on the product
  • One number for every site we cover

See how commercial sealant jobs are priced and how we’re accredited.

Accreditations

Trusted. Accredited. Insured.