Live-In Pet Sitting in London — In-Home Dog & Cat Care | Happy at Home Pet Care
Professional live-in dog & cat sitting — we move in so your pets keep their routine, cuddles, and calm at home.
Founder-led by Marcus Watts, DBS-checked with 20+ years’ pet care experience. Overnight live-in care. No kennels. No stress.
Live-In Care: The Best Choice for Your Pets
At Happy at Home Pet Care, we provide professional live-in sitting so your dogs and cats remain calm in their familiar environment — no kennels, no stress, just happy pets in their own space.
We specialise in sits of two nights or longer and regularly care for pets with special needs, including medication administration and anxiety-aware routines. Because we work remotely on site, your pets enjoy a genuinely consistent presence.
Founded and operated by Marcus Watts, Happy at Home brings veterinary-adjacent experience alongside years of trusted sits across London and abroad — from lively Labradors in Seville to farm animals and horses on expeditions in Argentina.
We treat your home with the utmost respect — security-conscious, tidy, and thoughtful. Plants watered, post collected, updates sent. Calm pets, a cared-for home, and peace of mind while you’re away.

Hi, I’m Marcus
No Stress for Your Pet
We keep your pets in their own home with familiar routines, toys and comfort zones.
Clean & Trustworthy
Background-checked and committed to maintaining your home's cleanliness and security.
Home Security Included
Your home stays occupied and cared for. We water plants, collect mail and keep a lived-in appearance.
24/7 Companionship
Round-the-clock care means your pets are never alone and always have someone to comfort them.
Veterinary Experience
Founder trained toward veterinary practice with hands-on experience and confident medication handling.
Great with Anxious/Rescue Dogs
Specialised, patient care for pets with anxiety or extra needs — gentle routines and consistent presence.

What Pet Parents Say
Don't just take our word for it—here's what happy pet owners have to say about their experience.
Caitlin C.
Oct 20, 2025
"Marcus was so kind and patient with both Zoe & me. :) He came out of his way to do a meet & greet and talk with us first, which is so important when someone's staying in your home. He was patient and listened with intention as I gave him lots of instructions for my old girl. It was clear Zoe was really comfortable and happy with him when we met but also when I got home. She's old and had some accidents and he handled them with kindness and calmness and let me know what was going on the whole time. He also left my apartment clean, stripped the sheets, etc which was so nice. Would definitely work with him again!"
Nina R.
Oct 02, 2025
"Marcus was from the start professional and caring. We had never used a dog/house sitter before Marcus and after meeting him he gave us great assurance. We were away abroad for a week and received daily communication with photos - In his communication he showed his understanding of our 13 year old Lurcher who is not always straightforward- he easily adapted to her routine or lack of!!! We returned to a very calm happy Elsa and the house was absolutely immaculate!! I thoroughly recommend Marcus; in fact I have already booked him for another week the end of this month. It's such a relief to know Elsa will be well looked after especially as she's an elderly dog that needs someone like Marcus - mature and capable."
Katie H.
Oct 23, 2025
"Perfect first sitter experience! Marcus was a brilliant sitter for my Minnie Moo. His communication was brilliant, keeping me updated and sending me pictures! He also left the flat nice and tidy. Will defo hire again."
Karolina O.
Sep 23, 2025
"Marcus stayed with our dog for about a week in London and did an amazing job. Our dog has a big of separation anxiety which Marcus managed really well. He was really attentive and kept in touch. I think the apartment looks better than when we left it :)"
Shyra S.
Jun 20, 2025
"Marcus provided excellent care for our dog during our time away. He was punctual, reliable, and handled all responsibilities with care & professionalism. Gracielo was well looked after and returned home calm and content. We were pleased with the overall service and would be happy to use his services again in the future."
Alexander B.
Sep 23, 2025
"Another great sit from Marcus. Respectful, tidy and the dogs love having him around"
Helen G.
Sep 09, 2025
"This was a repeat booking for Marcus as he does a great job of looking after our dog Maisie who has separation anxiety. Great communication and a calming nature with Maisie"
Alexander B.
Jun 29, 2025
"Marcus was great with our two pups and looked after our home well. Would 100% recommend"
Helen G.
Jun 20, 2025
"This was our first time using Rover. Marcus was polite and respectful to us and our home and more importantly calm and caring to our nervy Maisie. Our evening was much more relaxed knowing Maisie was being cared for"
Alexander B.
May 18, 2025
"Excellent and considerate sitter. Will definitely use again"
Let's Connect
Ready to give your pets the comfort of staying home? I'm flexible with my schedule and available for both short-notice requests and extended stays. The longer the stay, the better!
Live-In Care Service
24/7 In-Home Pet Sitting with Veterinary Training
I stay at your home to provide round-the-clock care for your pets. Specialist in medium-longer term sits (2+ nights) with big discounts. Experienced with extra care dogs, anxious pets, and rescue animals.
- ✓Feeding & fresh water
- ✓Playtime & exercise
- ✓Medication administration
- ✓Litter box & cleanup
- ✓Regular photo updates
- ✓Home security & maintenance
- ✓Plant watering & care
- ✓Special needs & anxious pets
My Availability
Green dates show when I'm available for new bookings