French Doors

Timeless looks. Secure and practical for everyday use.

French doors are a classic way to open a kitchen or garden room. You get a symmetrical look, easy access and plenty of light. We survey, supply and fit across Grantham, Stamford, Sleaford, Newark, Bourne, Melton Mowbray and nearby villages.

Why Choose French Doors

Classic style
Balanced, symmetrical look that suits both period and modern homes.
Easy everyday access
Use one leaf like a normal door. Open both when you want a wider opening.
Warm and quiet
Quality seals and high performance glazing reduce draughts and noise.
Secure by design
Multi-point locking, robust hinges and toughened or laminated glass where needed.
Flexible layouts
Add side panels or fanlights to increase light and width.

Where French Doors Work Best

  • Kitchen diners that open to a patio or garden

  • Garden rooms and orangeries where a central pair looks right

  • Period properties that need a traditional feel with modern performance

  • Spaces with limited width where bi-folds are not ideal

If you want a wide, single opening with the least frame, consider sliding doors. If you want the biggest walk-through opening, consider bi-folds. We can show you both at survey.

French Doors

Styles, Layouts and Options

Materials and finishes

• uPVC in smooth colours or timber-look foils
• Aluminium for slim, crisp lines
• Dual colour available on many systems

Glazing

• High performance double glazing as standard
• Laminated or acoustic glass for security and noise
• Privacy and decorative options where needed

Openings

• Left or right master leaf for daily use
• Equal or unequal leaves to suit the space
• Add fixed side panels for a wider overall set
• Fanlights above for extra height and daylight

Hardware

• Lever handles, pull bars or knob sets
• Traditional and contemporary styles in chrome, satin, brass or black
• Colour matched hinges where the system allows

Thresholds

• Standard weathered thresholds for best sealing
• Low thresholds for easier access. We will explain weather performance and exposure so you can choose confidently

Comfort, Energy and Noise

Thermal performance

Thermally broken frames, low-e glazing and warm edge spacers help keep rooms comfortable and bills sensible.

Security

Multi-point locking and robust keeps. Laminated glass available for vulnerable panes and side panels.

Noise reduction

Tight seals and acoustic glazing options help if you are near traffic or schools

Accessibility

Low thresholds available for smoother transitions. We will balance access needs with weathering for your location.

The Way We Work

Survey and advice

We visit, measure properly, look at your existing frames and talk through finishes, glazing and hardware. It’s a conversation, not a sales pitch.

Clear written quote

You’ll get an itemised quote with the style, colour, glass spec, lead time and warranty. No vague “from…” pricing and no surprises later.

Made to measure

Every frame is built for your apertures. This is what keeps the installation neat and the seals tight.

Tidy fitting

We protect floors, remove old frames and glass, seal up neatly and clean down. Old materials are taken away. You’re not left with a skip.

Aftercare

If you ever need us, you don’t get pushed to a call centre. You speak to the same team who fitted the job.

Survey and advice

We measure properly, check clearances and talk through openings, side panels, thresholds, colours and glass.

Itemised quote

Clear specification with lead times and warranty. No vague prices.

Made to measure

Frames and door leaves built to your sizes for neat lines and reliable sealing.

Tidy installation

Floors protected. Old sets removed carefully. Edges sealed, trims finished cleanly. All waste taken away.

Aftercare

If you need anything, you speak to the same friendly team who fitted your doors.

Recent Installations

Serving Grantham, Stamford, Sleaford, Newark, Bourne, Melton Mowbray and nearby villages.

FREQUENTLY ASKED QUESTIONS

French Doors

Yes. Multi-point locks, strong hinges and quality cylinders are standard. Laminated glass can be added for extra protection.

Modern frames and glazing reduce draughts and heat loss compared with older timber or first-generation uPVC doors.

Yes. Side panels and fanlights increase light and overall width. We will design a set that fits your opening.

Standard thresholds give the best seal. Low thresholds are available and work well when specified correctly for exposure and drainage.

Like-for-like replacements usually do not. If you are enlarging the opening or in a conservation area, we will advise before anything is ordered.

Most French door replacements are completed in half a day to a day. You will get a realistic schedule with your quote.

Yes. We take away old frames, glass and packaging and leave everything tidy.

Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I have been using Avanti for 35 years and the service and product quality is amazing!
Posted on Google Google
Will mcintosh profile picture
Will mcintosh
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Cannot recommend Avanti enough!! Amazing service from start to finish. The whole team were friendly and professional. Great job and have told all my family and friends if they ever need a job doing, to give them a call
Posted on Google Google
Natalie Buxton profile picture
Natalie Buxton
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We had nine blown windows, called a couple of window companies to try and get the best price and these guys were the only ones who got back in touch with us. We weren't willing to wait around so went with them and I'm glad we did. They came out, took the measurements and ordered the glass. I was advised the glass could take about four weeks which was fine. Less than a week later I got a call asking if there was any chance they could come later today to fit our new windows! They came round and had them all replaced in about an hour!! For the first time since we've moved into our house we have been able to see properly out of our window! Thank you for the professional and prompt service! I would recommend.
Posted on Google Google
Lisa Knight profile picture
Lisa Knight
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We have this week had our windows installed courtesy of Avanti Windows Grantham. From start to finish we have had excellent service. I knew I was in safe hands when I met Richard who came out originally to measure up and quote, but to be honest everyone we have dealt with from Richard through to the fitting team have been spot on. Very professional. We did get quotes from other well known window suppliers but the out dated sales tactics and tedious process put us off. There was none of that with Avanti…. It was so easy. I would highly recommend them. I’d give 6 stars if I could👍🙏
Posted on Google Google
MARK GOODE profile picture
MARK GOODE
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Amazing firm and very professional. They’ve done a great job In replacing our conservatory roof for a solid one. Punctual everyday and end result it brilliant. Highly recommend
Posted on Google Google
George Pim profile picture
George Pim
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Avanti delivers an outstanding service. I had a new glass roof fitted on my conservatory and the team also refurbished the whole conservatory and made it look like it was new. Fantastic job, exceeded my expectations. I have no hesitation in strongly recommending this company. A big thank you to the whole team at Avanti, a great bunch of guys!
Posted on Google Google
Douglas Howcroft profile picture
Douglas Howcroft
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Brilliant company. Quality windows. Staff really friendly and helpful.
Posted on Google Google
Chris Jones profile picture
Chris Jones
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Absolutely over the moon with my windows and doors, service and fitting is top notch!! We will be having replacement windows from them in the future!!
Posted on Google Google
Toni Blakey profile picture
Toni Blakey
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
A patio door leaked because they "forgot to put in drain holes". Ahe door got fitted by "trimming" the opening by wacking it with a lump hammer (even though the builder was on hand with a diamond saw), the windows came scratched and the external paint could be removed with a finger. I saw they hadn't sealed in the window frames and asked why not. Apparently they don't carry sealant!?!? They all got taken out and my builder rebuilt the door opening.
Posted on Google Google
Sheila and Peter profile picture
Sheila and Peter
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Tony and the team were very professional throughout the whole process. The fitters had to install all new windows and doors and have completed to a high standard. They have been very accommodating with my timescales and would highly recommend. Thank you!
Posted on Google Google
Evie English profile picture
Evie English

Book a Home Visit