Essex · England
Monk Street Window Mastic
Specialist window mastic for Monk Street: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Cracked sealant at the sill ends
- Gaps left after new windows were fitted
- Mastic that is falling out in pieces
Window mastic in Monk Street, done properly
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that can’t flex, so deep gaps get backing rod first. The sealant then grips the two sides it should. If you’re dealing with draughts coming in around windows and doors and old mastic that has gone black or come away, we can put it right, on uPVC windows, composite doors and aluminium frames alike.
Mastic can only go onto a dry, clean joint, so window work in Monk Street is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Monk Street (CM6)
- Region
- Essex
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
After the cure time, these simple habits help:
- Wipe condensation off the frames
- Keep paint and stain on wooden frames in good order
- Wash the frames with mild soapy water
- Do not aim a pressure washer at the joints
Check the drainage slots in the frames are not blocked, so rain drains out rather than building up at the sealant.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. A new joint closes it up.
Places near Monk Street
Also in Monk Street
Signs you need window mastic in Monk Street
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. A sealant that cannot keep up eventually tears.
Look out for these signs:
- Cold air getting in at the frame edge
- Gaps where the sill meets the wall
- Rushed sealant from a window installation
- Mastic that has split away from the wall
Letting a property close to Stansted Airport station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Before you book anyone
- Who turns up on the day
- Is the old sealant removed completely?
- Are they insured?
- What the cure time is
How we quote for window mastic
Your quote is based on your job. We take into account:
- Any working-time requirements on site
- The amount of work
- Any mould that needs treating
- The product the joint needs
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Where the job is, and your postcode
- How we’d reach the joints
- What the problem is, such as mould, gaps, leaks or cracking
- Any previous sealing or DIY work
Need a quote? Please phone 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and give you a clear price before we start.
Landlord and commercial work in Monk Street
We work for letting agents and landlords as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
We also work for property managers and facilities teams in Monk Street and across Essex. Several sites can go on one quote.
Monk Street: your questions answered
Do you cover smaller places like Monk Street?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Monk Street in your area for window mastic?
Yes. Our work covers London and the South East, and Monk Street is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear quote.
Can resealing stop a draught around my window?
Yes, if the air is getting in around the frame. If it’s coming through the window seals, we’ll tell you.
Do you have insurance?
Yes. We’re fully insured.
How long will my window job take?
Allow most of a day for a typical house, less for a few frames. Access and how stubborn the old mastic is affect the time most.
Can you get sealant to suit coloured frames?
Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.
Do you seal inside as well as outside?
Yes. Plenty of draughts come through the inside joint as well as the outside, so sealing both is often worthwhile.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned.
The process
On the day, we look over the joints with you first, so you know exactly what we are doing. We protect the surfaces around the joints before work begins. The work generally takes a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like Monk Street, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- We fit backing rod in deep gaps so the sealant is the right depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- We clear up and check every joint is fully closed.
Before we arrive
- Mention if the joints have been sealed before
- Let us know about parking restrictions
- Clear items away from the joints we are working on
How to get a quote
We quote each job on its own. Just phone 0345 464 0079 or email us with the details.
Advice
Different surfaces, different methods
Composite doors
Front doors take the weather head on. We pay most attention there.
Window sills
Masonry sills can have joints where water gets in, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
Honest limits
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Damp coming through the wall itself rather than the frame joint
- Faulty window hardware
- A frame that has rotted at the joint
If you’re not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Joints and surfaces we work on
- Aluminium frames
- Composite doors
- Patio & French doors
- Timber windows & doors
- Window sills
- uPVC windows
What window mastic looks like in Monk Street
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Horham Hall (about 1.5 miles west) nearby, there’s older building stock in the area around Monk Street as well as newer homes. 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.
Horham Hall, about 1.5 miles west, is one of the historic houses in the wider area around Monk Street.
Monk Street is about 7 miles south-east of Saffron Walden, in Essex. From the centre of Monk Street to the outskirts, we cover window mastic for every kind of property, from flats and houses to offices and hotels. 644 places in Essex are on our list, from the larger towns to small villages. We also work in Chelmsford, about 15 miles from Monk Street.
Postcode districts we cover here for window mastic: CM6. We cover properties on Folly Mill Lane and Monk Street and the roads around them. Nearby, we also carry out window mastic in Sibley's Green (1 mile south-east), Thaxted (1 mile north), Duton Hill (1 mile south-west), Bardfield End Green (1 mile north-east) and Cutlers Green (2 miles north-west). Larger places within reach include Chelmsford (15 miles south-east), Braintree (10 miles east), Harlow (15 miles south-west), Witham (15 miles south-east), Saffron Walden (7 miles north-west) and Halstead (13 miles east).
Landmarks near Monk Street
Locally, jobs take us to homes and businesses close to Greyhound Public House. The closest station to Monk Street is Stansted Airport station, about 4.7 miles south-west of the centre. Well-known places in the area include Little Easton Moat (3.4 miles south). For a walk, there’s West Wood.