Frequently Asked Questions
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Frequently Asked Questions ?????
How long does a professional oven clean take?
A standard single oven clean usually takes 1.5 to 2 hours, depending on the condition and type of appliance. Double ovens, ranges and extra appliance cleaning (hob, extractor fan, microwave, BBQ) may take a little longer.
We work carefully and thoroughly to ensure your oven is fully deep-cleaned, restored and safe to use.
Is it safe to be at home while my oven is being cleaned?
Yes — it’s completely safe.
Our eco-friendly cleaning process means no strong fumes, no harmful vapours, and no disruption to your home. You can continue working, relaxing or cooking in other areas while we get your oven looking like new again.
Customers in Eltham, Greenwich, Sidcup, Lee and Kidbrooke often stay home during the appointment with no issues at all.
Are the cleaning products harmful to children or pets?
No.
We use eco-friendly, non-toxic, pet-safe oven cleaning products suitable for homes with children, pets and sensitive individuals.
There are no corrosive industrial chemicals brought into your kitchen — everything we use is designed for safe domestic oven cleaning.
Your oven is safe to use immediately after the clean.
Do I need to remove or strip my oven before you arrive?
No
You don’t need to prepare anything.
Your technician will remove racks, trays, oven doors, and detachable parts as part of the cleaning process. If there are items stored in your oven, you can take them out beforehand, but if you forget, we’re happy to help.
Do you clean between the oven door glass?
Yes.
We dismantle the oven door where possible to clean between the glass panels, removing grease, streaks and internal marks for a clearer, fresher look.
This is one of the most noticeable improvements customers see after a professional deep clean.
How soon can I use my oven after it’s been cleaned?
Your oven can be used straight away.
Our eco-friendly products leave no harmful residue, and the appliance is wiped, rinsed and fully reassembled before we leave.
Do you cover my area in Southeast London?
Yes
GJO Oven Cleaning Services provides professional oven cleaning across:
Eltham (SE9), Mottingham, New Eltham, Kidbrooke, Blackheath, Greenwich, Sidcup, Lee, Bexley, Bexleyheath and surrounding SE London and North Kent areas.

