Essex · England
Camulodunum Window Mastic
We cover Camulodunum for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Cracked or shrunken mastic around the frame
- Old mastic that has gone black or come away
- Sealant in the wrong colour for the frame
Camulodunum: your questions answered
Do you cover Camulodunum for window mastic?
Yes, Camulodunum is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear quote.
Can you help a landlord with a rental near Colchester Town station?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator.
What does window mastic cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Can resealing stop a draught around my window?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that is a different fix, and we will say so.
Can you do upstairs windows?
Yes, in most cases. Access is planned before any work starts.
What should I tell you?
A short description and the location, with pictures by email if possible. If we need more, we’ll ask.
Can you get sealant to suit coloured frames?
Yes, we choose a colour to suit the frame. Anthracite grey, black, brown and white cover most frames, with clear as an option.
About our window mastic in Camulodunum
Frames and walls do not move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. We work on patio & French doors, uPVC windows and composite doors, and people most often call us about draughty joints inside around the window and cracked or shrunken mastic around the frame.
Plenty of homes in a town like Camulodunum have had conservatories, patio doors or new windows added over the years. Each one adds more joints to look after, and those joints age at different rates. Sills, frame heads and glazing joints are where leaks usually start.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Location
- Camulodunum (CO3, CO2, CO1)
- Wider area
- Essex
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Also near Camulodunum
What else we do in Camulodunum
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Use gentle cleaners on frames and sealant
- Keep jet washers away from the mastic
- Paint up to the joint, not over it
- Keep solvents and bleach off the sealant
Most silicone sealants will not take paint, so mention any painting plans before work begins. There are paintable sealants for joints that need it.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
How the job changes by surface
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. We pay most attention there.
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. We will point out any rot we find, as a joiner will need to deal with it.
Camulodunum homes and the weather
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Colchester Town station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For site and facilities teams at buildings such as Philip Morant School and College, the mastic around its windows and doors needs looking after like any other building’s.
Camulodunum is about 1 mile west of Colchester, in Essex. Camulodunum gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Camulodunum is one of 644 places in Essex where we work. For nearby work, see our Chelmsford page.
Jobs for window mastic in CO3, CO2 and CO1 is quoted and booked the same way as anywhere else. If you need window mastic at a property on Back Lane, Park Road and Butt Road or anywhere close by, we can help. Camulodunum sits on or near the A1124, which makes travel easy. If you are just outside Camulodunum, we cover Lexden (1 mile west), Braiswick (1 mile north), Abbey Field (1 mile south-east), Colchester (1 mile east) and Beacon End (2 miles west). We also work in nearby towns such as Braintree (13 miles west), Clacton-on-Sea (13 miles south-east), Maldon (13 miles south-west), Witham (12 miles south-west), Halstead (11 miles west) and Heybridge (13 miles south-west).
Landmarks near Camulodunum
We work in homes and buildings around Prettygate Infant School, Lexden Park and The Sun Inn, among other places. The closest station to Camulodunum is Colchester Town station, roughly 1.4 miles east. Well-known places in the area include Lion Walk (1.2 miles east) and Colchester Castle (1.4 miles east). Not far away are Lexden Gathering Grounds.
When something else is needed
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Draughts through the window seals rather than the frame
- Damp coming through the wall itself rather than the frame joint
If you are not sure, just ring 0345 464 0079 or email us and we will give you a straight answer before booking.
What we seal
- Patio & French doors
- Composite doors
- uPVC windows
- Aluminium frames
- Window sills
- Timber windows & doors
How we quote for window mastic
For a quick quote, just ask. What matters most is:
- Any mould that needs treating
- The number and length of the joints
- Working hours on commercial sites
- Whether the work is at height
Leaving a failed joint generally makes the job bigger, not smaller. If you are unsure, phone 0345 464 0079 or email us for an honest opinion and a quote.
Helping us quote
What to tell us when you ask for a quote:
- Any access issues, like height or stairs
- The type of property
- Roughly how big the job is
- The address or postcode of the job
We quote each job on its own. Simply ring 0345 464 0079 or send us an email and describe the job and send pictures if you have them.
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
How the visit works
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. Once we have agreed what’s being done, we protect the area and start. It normally takes a few hours for a handful of frames, longer for a whole house. For a job in Camulodunum, we need access to where the work is and somewhere nearby to park. For outside work, let us know about side access, gates and any upper-floor joints.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Keep pets and children clear of the area while we work
- Mention any parking rules near the property
How to get a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Read more
Common problems we fix in Camulodunum
Sills take more water than any other part of a window, so the sill ends and the joint below the frame are common leak points. Failed sealant there lets rain into the wall or behind the frame.
Look out for any of the following:
- Draughty joints inside around the window
- Gaps left after new windows were fitted
- White mastic on grey or black frames
- Cracked sealant at the sill ends
Homes close to Colchester New Church include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.
Questions to ask before you book
- When the joint can take water or movement
- Whether VAT is included
- How long the guarantee is
- Are they insured?