Essex · England
Window & door mastic in Greensted, Essex
Our applicators work in Greensted on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Draughts coming in around windows and doors
- Gaps left after new windows were fitted
- Gaps between the frame and the inside reveal
Surface by surface
Window sills
Sills catch the water running down the glass, so the joints at each end and underneath matter. Each is cleaned out and resealed.
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We will tell you which suits your home.
Window mastic for homes and businesses in Greensted
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through. Where the air is getting in through the window itself, we will say so. Common call-outs are for gaps between the frame and the inside reveal and water coming in at the bottom corners of a door, across composite doors, patio & French doors and timber windows & doors.
Outdoor sealant needs dry, clean surfaces, so work on frames around Greensted is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Location
- Greensted (CM5)
- Region
- Essex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Greensted: your questions answered
Is Greensted within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is there a guarantee on window mastic in Greensted?
All our work, in Greensted and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Are you fully insured?
Yes, we’re fully insured.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area.
Can you do upstairs windows?
Yes, where it’s safe. Higher or awkward frames may need extra access, and we will confirm what’s needed.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Is it messy?
We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.
Places near Greensted
More services for Greensted
Window mastic in Greensted: local notes
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. Historic houses like Hill Hall (about 3.8 miles south-west) are a reminder that the area around Greensted has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
In the older streets around Greensted Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Schools such as Chipping Ongar Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Greensted is about 5 miles east of Epping, in Essex. We provide window mastic to householders, landlords and businesses in Greensted and nearby, as part of our work across Essex. Our area takes in 644 places across Essex. There’s also a page for Chelmsford, about 11 miles away.
Here we cover the CM5 postcode area for window mastic. Neighbouring places we cover for window mastic include Chipping Ongar (1 mile east), Greensted Green (1 mile west), Shelley (1 mile north-east), High Ongar (2 miles east) and Bobbingworth (2 miles north). Further out, we also cover Chelmsford (11 miles east), Basildon (13 miles south-east), Harlow (7 miles north-west), Brentwood (6 miles south-east), Billericay (10 miles south-east) and Loughton (8 miles south-west).
What’s near Greensted
Typical jobs here are in homes near Two Brewers Public House and The Ongar Academy, among other places. A little further out are St. Margaret's Hospital (4.4 miles west). For a walk, there’s Gernon Bushes.
How the visit works
We keep the work tidy and contained to the joints we are treating. The job usually takes most of a day for a typical house, less for a few frames, and we explain the cure time before we leave. For a village or hamlet like Greensted, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- 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
- Mention any parking rules near the property
- Let us know about stairs, lifts or work at height
- Mention any sign-in or site rules at work premises
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Read more
When it isn’t the sealant
In fairness, there are a few things sealant will not fix:
- A frame that has rotted at the joint
- A failed sealed unit that has misted up
- A door that needs adjusting, rehanging or new seals
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Joints and surfaces we work on
- Window sills
- Timber windows & doors
- Patio & French doors
- Aluminium frames
- uPVC windows
- Composite doors
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Check the mastic once a year
- Keep paint and stain on wooden frames in good order
- Keep solvents and bleach off the sealant
- Do not aim a pressure washer at the joints
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
What affects the cost of window mastic
The price is agreed before any work begins. It’s based on:
- Any mould that needs treating
- How many rooms, windows or areas are involved
- Working hours on commercial sites
- Whether the work is at height
Doing several joints on one visit is usually more efficient than separate visits. We’ll give you a clear price for the lot.
What to tell us for a quote
When you contact us, these details help:
- The type of property
- Roughly how big the job is
- How we’d reach the joints
- A few pictures by email, if you can
If you’re in Greensted and need window mastic, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Landlords, agents and businesses in Greensted
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
We also work for property managers and facilities teams in Greensted and across Essex. Several sites can go on one quote, and we’re fully insured.
Why act early in Greensted
Resealing frames is a short job: it takes most of a day for a typical house, less for a few frames. Leave it until water is coming in and you may need plastering and decorating as well. Around Greensted, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why choose Mr Mastic in Greensted
- Every job guaranteed for a year
- Old sealant always removed completely
- Anti-fungal silicone where joints get wet
- Arbo and Everbuild products