You've Decided You Want a Pond. Now What?
Congratulations, you've made the decision to add a pond or water feature to your property. It's one of the most rewarding investments you can make in your outdoor space. But before you break ground, there are a few things you need to know.
We've been building ponds and water features in the Philadelphia area for over 25 years, and if there's one thing we've learned, it's this: the difference between a pond you love and a pond you regret almost always comes down to the planning stage.
This guide is designed to walk you through the entire process, from finding the right contractor to avoiding the mistakes we see homeowners make over and over again. Whether you're dreaming of a tranquil koi pond, a dramatic waterfall, or a simple bubbling rock, the steps below will help you make smart decisions and get the best possible result.
We've also put together a free downloadable checklist you can print and bring to your contractor meetings.
Finding the Right Contractor
Not all pond builders are created equal. Many landscapers offer pond installation as an add-on service, but building a pond that actually works, with proper filtration, circulation, and ecosystem balance, requires specialized experience.
The contractor you choose will have the single biggest impact on your satisfaction. Here's a checklist to help you evaluate anyone you're considering:
About us: AquaReale is a family-owned company with 25+ years of experience and hundreds of completed projects across the Philadelphia area. We never subcontract our work, and our designer is on-site for every build. Browse our portfolio →
15 Questions to Ask Before You Sign a Contract
Once you've narrowed your list to a few candidates, it's time to have real conversations. A good contractor will welcome tough questions. In fact, they'll respect you more for asking them. If someone gets defensive or vague, consider it a red flag.
Here are the questions we'd want answered if we were hiring someone to build a pond in our own backyard:
8 Mistakes We See Homeowners Make (Again and Again)
After 25 years in this business, we've seen just about every pond problem imaginable. Most of them could have been avoided with a little foresight. Here are the ones we encounter most often, and how to steer clear of them.
Choosing the cheapest bid
The lowest price often means cutting corners on filtration, liner quality, or construction methods. Compare scope of work, not just totals.
Skipping biological filtration
Without proper bio-filtration, you'll battle green water and algae endlessly. A quality biological filter is non-negotiable.
Wrong pond placement
Full sun with no shade means hotter water, more algae, and stressed fish. Consider tree canopy, runoff, and viewing angles.
Not planning for fish
Adding koi after the fact often means inadequate depth, filtration, and aeration. Decide before construction begins.
Skipping a maintenance plan
Every pond needs regular care. Without a plan, small issues become expensive problems within a season.
Building too small
The #1 regret we hear: 'I wish I'd gone bigger.' It's much easier (and cheaper) to build larger now than to expand later.
Ignoring electrical needs
Pumps, lights, and aerators need GFCI-protected circuits. Plan electrical runs before excavation, not after.
Forgetting winter prep
Freezing temps can crack pipes and damage pumps. A winterization plan protects your investment year-round.
Planning Your Pond: What to Think About Before Your First Meeting
You don't need to have all the answers before your first consultation. That's what the consultation is for. But having a general sense of your priorities will help your contractor design something that truly fits your life, your yard, and your budget.
Size & Depth
Consider your yard space, how visible you want the pond, and whether you'll keep fish (koi need 3+ feet of depth).
Fish or No Fish
Fish add life and beauty but also require stronger filtration, deeper water, and regular feeding. It's a commitment worth considering early.
Features
Waterfalls, streams, fountains, and lighting all add ambiance and cost. Think about what matters most to you and what you can add later.
Location
Partial shade is ideal. Avoid low spots where runoff collects, and consider the view from your favorite sitting area.
Budget
Quality ecosystem ponds typically start at $12,000 to $15,000 for a small 6×8 build. Plan for 10 to 15% contingency for surprises like rock or drainage issues.
Timeline
Most ponds take 2 to 5 days to build. Spring and early fall are peak seasons, so if you want a specific date, book early.
Take This Checklist to Your Next Contractor Meeting
We put everything from this guide into a printable PDF you can bring with you. It covers contractor vetting, the questions to ask, mistakes to watch for, and a planning worksheet to organize your thoughts before your consultation.