Private use of the KidStrong center during your party
Birthday parties that rock.
Kids' Birthday Parties in Stratham, NH
A private, coach-led KidStrong party filled with action, confidence-building games, and unforgettable birthday memories.
KidStrong Stratham
Birthday parties are hosted at KidStrong Stratham, 28 Portsmouth Ave STE 10 in Stratham, NH. Call us at +1 603-296-1272 to check party dates and availability.
28 Portsmouth Ave STE 10Stratham, NHWhy Stratham, NH families love us
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BRANDON C.
"Incredible 7th Birthday Party at KidStrong Stratham! We just celebrated our daughter’s 7th birthday at KidStrong Stratham, and we couldn’t have asked for a better experience! A huge shoutout to Coach Joe and Coach Amelia—they were phenomenal! From the minute we arrived, they brought high energy, kept all the kids en..."
October 3, 2026
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BONNIE B.
"Kid Strong was recommended to us as a good movement activity. It is so much more. This month we're covering public speaking skills in the activities. Answer a question, like what is your favorite holiday and why and then complete a movement activity. He participated in a wrecking ball movement that he really enjoyed. Great organization!"
August 12, 2026
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GABRIELA P.
"My son love go to KidStrong! He always have a lot of fun and the place and all the staff are so good. I’m grateful to found this place."
July 23, 2026
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KELLY D.
"My son absolutely LOVED his first class! He loved “working out” and meeting new friends. I would recommend this center because of how welcoming everyone is. They encourage the kiddos to do their best and have fun. My son will absolutely be going back! I love that there is a place like this around! The coaches were absol..."
July 13, 2026
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ALYSSA S.
"Amazing at meeting kids where they are and fostering confidence. My son has gotten noticeably stronger and wants to participate in their summer camp now! Cannot recommend enough 💪🏽"
June 15, 2026
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BRIANNA H.
"The coaches are so great. Their energy and inclusion for all the children is admirable. They make such an effort to remember names and make each child feel special. I’ve been in classes where (on a rare occurrence) a child may not be listening or scared to participate and they go above and beyond to redirect behavior or e..."
May 31, 2026
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NICOLE W.
"It’s a great place for kids. The coaches seem to care and are very involved and dedicated. The program is fun and educational. The price for the membership is on the higher end and I’m not sure if it’s sustainable long-term which is a shame because it’s very beneficial for the kiddos"
April 30, 2026
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ALEXX M.
"Kidstrong has such a positive program, my kids can't wait to go each week! The teachers know them and support them which we love. The skills that they learn are both physical and mental and team work is at the heart of the classes"
April 9, 2026
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SCALA W.
"Excellent classes, coaches, and curriculum. Great positive and encouraging energy. So happy my son goes there - he loves it."
April 9, 2026
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CHRISTYN K.
"The entire concept of Kidstrong is so amazing to our family, but getting to see our son thrive and grow in different ways than we could have helped him do on our own is just amazing. We plan to homeschool our children and places like this make it feel more possible and like we can give him important social experiences and s..."
March 30, 2026
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MEAGAN T.
"First day.. super clean, professional, exciting. I’ve done gymnastics since I was 3 and coached since I was 13. They really nailed this program perfectly to keep kids engaged, active and excited. Can’t wait to come back next week with my 3 year old son."
March 27, 2026
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R T.
"My 2 year old loves her wednesday morning classes with Coach Zach. Its a super welcoming, energetic and fun environment! We love the structured play and games, its really teaching her how to sit, listen, and try her best! 100% recommend trying it out!"
March 20, 2026
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TAMARA W.
"I can’t say enough wonderful things about KidStrong Stratham, and especially about Coach Ava! From the moment my kids stepped into her class, I felt welcomed, supported, and motivated. Ava’s infectious enthusiasm and expert guidance make every session both challenging and fun. Coach Ava takes the time to understand eac..."
March 8, 2026
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KATIE N.
"My son has been at Kidstrong Stratham for a year and a half and he loves it!! He is challenged by physical activity, works on social skills, and takes pride in what he accomplishes. We’ve also done Kidstrong Academy during the summer and the days are structured with so much play he sleeps on the way home! Come join us, it..."
March 7, 2026
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JUSTINE M.
"My children have been going here for about a month. My kids love going to KidStrong and ask me every morning "is today KidStrong day?." I love the well-rounded programming and how age-appropriate all of the tasks are. So far, we are pleased with how things are going at KidStrong!"
March 3, 2026
What you get
Everything needed for an epic party.
We handle the movement, games, coaching, setup, and cleanup so families can focus on celebrating.
Book a Birthday Party90-minute private party
Up to 15 kids included
Two KidStrong coaches
One KidStrong T-shirt for birthday child
Food and cake celebration time included
Set-up and clean-up included
90
minute private party
15
kids included
2
KidStrong coaches
Guided fun
70 minutes of guided activities
A KidStrong birthday party is non-stop action, packed with KidStrong-exclusive games and activities guaranteed to create epic memories, with the last 20 minutes dedicated to food and cake.
Book a Birthday PartyPrivate event
The whole facility is yours
Want your kid to be the VIP? We’ve got you covered. With KidStrong Parties, the entire facility is dedicated to your kid’s special day.
Book a Birthday PartyCoach-led
Two amazing coaches
You get not one, but TWO of our KidStrong-certified coaches for the entire duration of your party.
Book a Birthday PartyMake it yours
Party add-ons at KidStrong Stratham.
Add-ons available at KidStrong Stratham. Call+1 603-296-1272 to discuss options that can make the day even easier.
Additional Kids
Additional Party Time
KidStrong T-Shirts for Guests
Goody Bags
Additional Coach Support
Food & Beverage Packages (where available)
Paper Products & Party Supplies (where available)
Ready to celebrate?
Book a KidStrong birthday party today.
Private facility. Expert coaches. Epic memories. Let’s make this birthday strong.
Questions Parents Ask
Frequently Asked Questions
Everything you need to know about KidStrong birthday parties.
How many kids can attend the birthday party?
Each party includes up to 15 kids. Additional kids may be added for an additional fee. Call KidStrong Stratham at +1 603-296-1272 to check availability and pricing.
How old does my kid need to be to book a party?
KidStrong offers birthday parties for kids aged 1-11. Guests 3 years and younger must have an adult (18 or older) on the floor with them.
What time can I arrive?
Check with KidStrong Stratham at +1 603-296-1272 on arrival time.
What am I allowed to bring to the party? What do I need to bring?
Families are welcome to bring food, beverages, cake, decorations, and other celebration items. Contact KidStrong Stratham for any location-specific guidelines.
Is gratuity included or should I tip the coaches?
For details on gratuities or any applicable service fees associated with your party, contact KidStrong Stratham at +1 603-296-1272.
Does the party host’s child count as a part of the total child count?
Yes, any kid that is on the floor counts towards the party count.
Are waivers required for participation?
Any participant on the floor, 18 and under, must have a signed waiver. When you book your party, we will give you a link where you and your guests can sign the waiver ahead of time.
Do parents need to stay at the party?
If the kids are under 3, a parent needs to be on the floor, for kids older than that, please check with the center on parent policy.
How is my party run? What is the schedule of the party?
Our coaches will check in all guests and ensure that a waiver has been completed. Once checked in, kids can join the coach on the blue floor for explore time. When the majority of the guests arrive (typically 5 minutes after party start time), or when the party parent is ready to begin, the coaches will begin the games on the blue floor. Blue floor games and activities will take about 70 minutes and the remaining party time will be for food/cake.
How far in advance should I book my party?
To ensure you get the date and time of your party, we recommend at least 1 month in advance.
What is the deposit amount?
Check with KidStrong Stratham at +1 603-296-1272 for party deposit prices. Deposits are applied to your remaining balance at the end of your party. You can book your party online at any time.
Can I pay my party balance prior to the day of the party?
Yes, you can pay for the party balance ahead of time by contacting KidStrong Stratham at +1 603-296-1272. Keep in mind, a final headcount will take place the day of the party and additional kids will be charged the day of the party.
What is the cancellation policy?
All party deposits are NON-REFUNDABLE. Check with KidStrong Stratham at +1 603-296-1272 for the full cancellation policy.
Do I have to sign a party agreement?
Yes. All parties require a signed party agreement before the reservation can be confirmed.
Where can I get the waivers?
The link to our waiver form is always easily available on our website. You will also receive a link to share with your guests in your part confirmation email. It is recommended that your guests complete the waiver prior to arrival.
Do I have to be a KidStrong member to host a KidStrong party?
No. Non-members are welcome to host parties at KidStrong. Check with KidStrong Stratham on the perks of becoming a member.
Do you offer any add-on packages?
After booking your party, KidStrong Stratham will get in touch with you about the optional add-ons available for parties.
What Add-ons are available for a KidStrong Party?
Call KidStrong Stratham at +1 603-296-1272 for available add-ons and pricing.